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121-911: The Polar Satellite Launch Vehicle ( PSLV ) is an expendable medium-lift launch vehicle designed and operated by the Indian Space Research Organisation (ISRO). It was developed to allow India to launch its Indian Remote Sensing (IRS) satellites into Sun-synchronous orbits , a service that was, until the advent of the PSLV in 1993, only commercially available from Russia. PSLV can also launch small size satellites into Geostationary Transfer Orbit (GTO). Some notable payloads launched by PSLV include India's first lunar probe Chandrayaan-1 , India's first interplanetary mission , Mars Orbiter Mission (Mangalyaan), India's first space observatory , Astrosat and India's first Solar mission , Aditya-L1 . PSLV has gained credibility as

242-570: A Kevlar - polyamide fibre case and a submerged nozzle equipped with a flex-bearing-seal gimbaled nozzle with ±2° thrust vector for pitch and yaw control. Roll control is provided by the fourth stage reaction control system (RCS) during thrust phase as well as during combined-coasting phase under which burnt-out PS3 remains attached to PS4. The fourth stage is powered by regeneratively cooled twin engines, burning monomethylhydrazine (MMH) and mixed oxides of nitrogen (MON). Each pressure fed engine generates 7.4 kN (1,700 lb f ) thrust and

363-610: A commissioner of police . The Thiruvananthapuram city police is a division of the Kerala Police , and the administrative control lies with the Kerala Home Ministry . Thiruvananthapuram city police is the largest police division in Kerala, and it consists of four subdivisional offices and 24 police stations and a sanctioned strength of 3,500 police personnel. The Central Prison is the oldest prison in Kerala and

484-545: A medium -to- heavy-lift rocket. Arianespace is a subsidiary of ArianeGroup , a joint venture between Airbus and Safran . European space launches are carried out as a collaborative effort between private companies and government agencies. The role of Arianespace is to market Ariane 6 launch services, prepare missions, and manage customer relations. At the Guiana Space Centre (CSG) in French Guiana ,

605-596: A staged combustion cycle was adopted for the first stage engine, the LE-7 . The combination of the liquid hydrogen two-stage combustion cycle first stage engine and solid rocket boosters was carried over to its successor, the H-IIA and H-IIB and became the basic configuration of Japan's liquid fuel launch vehicles for 30 years, from 1994 to 2024. In 2003, JAXA was formed by merging Japan's three space agencies to streamline Japan's space program, and JAXA took over operations of

726-418: A toroidal tank at its bottom. Water spray is used to cool hot gases from Vikas' gas generator to about 600 °C before entering turbopump. Propellant and water tanks of second stage are pressurized by Helium . The third stage uses 7.6 t (7.5 long tons; 8.4 short tons) of HTPB solid propellant and produces a maximum thrust of 250 kN (56,000 lb f ). Its burn duration is 113.5 seconds. It has

847-546: A close relationship with Tamil heritage. In the early 18th century CE, the Travancore royal family adopted some members from the royal family of Kolathunadu based at Kannur . Then, Marthanda Varma who inherited the Kingdom of Venad expanded the kingdom by conquering the kingdoms of Attingal, Kollam, Kayamkulam, Kottarakara, Kottayam, Changanassery, Meenachil, Poonjar and Ambalapuzha. In 1729, Marthanda Varma founded

968-595: A common bulkhead. It generates a maximum thrust of 800 kN (180,000 lb f ). The engine is gimbaled (±4°) in two planes to provide pitch and yaw control by two actuators, while roll control is provided by a Hot gas Reaction Control Motor (HRCM) that ejects hot gases diverted from gas generator of Vikas engine. On inter-stage (1/2U) of PS2 there are two pairs of ullage rockets to maintain positive acceleration during PS1/PS2 staging and also two pairs of retro-rockets to help push away spent stage during PS2/PS3 staging. Second stage also carries some quantity of water in

1089-430: A cultural center. Marthanda Varma gave patronage to different temple art forms including Koothu , Padhakam , Kathakali , Thullal , and Koodiyattam . Noted artists such as Ramapurathu Warrier and Kunchan Nambiar amongst others served as his court poets. Travancore became the most dominant state in Kerala by defeating the powerful Zamorin of Kozhikode in the battle of Purakkad in 1755. The city developed into

1210-402: A demonstration PS4 was kept operational and monitored for over ten orbits after delivering spacecraft. PSLV-C44 was the first campaign where PS4 functioned as independent orbital platform for short duration as there was no on-board power generation capacity. It carried KalamSAT-V2 as a fixed payload, a 1U cubesat by Space Kidz India based on Interorbital Systems kit. On PSLV-C45 campaign,

1331-462: A joint venture. On 16 August 2019, NewSpace India Limited issued an invitation to tender for manufacturing PSLV entirely by private industries. On 5 September 2022, NewSpace India Limited signed a contract with Hindustan Aeronautics Limited and Larsen & Toubro led conglomerate for the production of five PSLV-XL launch vehicles after they won competitive bidding. Under this contract, they have to deliver their first PSLV-XL within 24 months and

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1452-499: A leading provider of rideshare services for small satellites, owing to its numerous multi-satellite deployment campaigns with auxiliary payloads, usually ride-sharing along with an Indian primary payload. As of June 2022, PSLV has launched 345 foreign satellites from 36 countries. Most notable among these was the launch of PSLV-C37 on 15 February 2017, successfully deploying 104 satellites in Sun-synchronous orbit, tripling

1573-506: A moderately earthquake-prone urban centre and categorised the metropolis in the Seismic III Zone. Thiruvananthapuram lies on the shores of Karamana and Killi rivers . Vellayani , Thiruvallam and Aakulam backwaters lie in the city. The soil type in the middle part of the city is a dark brown loamy laterite soil high in phosphates. Laterisation is a result of the heavy rainfall and humid conditions. In western coastal regions of

1694-484: A partial failure in 1997, leaving its payload in a lower than planned orbit. In November 2014, the PSLV had launched 34 times with no further failures. (Although launch 41: August 2017 PSLV-C39 was unsuccessful.) PSLV continues to support Indian and foreign satellite launches especially for low Earth orbit (LEO) satellites. It has undergone several improvements with each subsequent version, especially those involving thrust, efficiency as well as weight. In November 2013, it

1815-721: A significant intellectual and artistic centre during this period. The city's golden age was during the mid-19th century under the reign of Maharaja Swathi Thirunal and Maharaja Ayilyam Thirunal . This era saw the establishment of the first English school (1834), the Observatory (1837), the General Hospital (1839), the Oriental Research Institute & Manuscripts Library and the University College (1873). The first mental hospital in

1936-617: A success rate of 95% (or 97% including the partial failure). All launches have occurred from the Satish Dhawan Space Centre, known before 2002 as the Sriharikota Range (SHAR). Expendable launch system Arianespace SA is a French company founded in March 1980 as the world's first commercial launch service provider . It operates two launch vehicles : Vega C , a small-lift rocket , and Ariane 6 ,

2057-527: A two-thrust chambered, step-throttled second stage, the SLV has a lift off mass exceeding 26 tons. The first stage consists of a lengthened up-rated Shahab-3C . According to the technical documentation presented in the annual meeting of the United Nations Office for Outer Space Affairs , it is a two-stage rocket with all liquid propellant engines. The first stage is capable of carrying the payload to

2178-438: Is 34 °C (93 °F) and the mean minimum temperature is 21 °C (70 °F). The humidity is high and rises to about 90% during the monsoon season. Thiruvananthapuram is the first city along the path of the south-west monsoons and gets its first showers in early June. The city receives heavy rainfall of around 1,835 mm (72.2 in) per year. The city also gets rain from the receding north-east monsoons which hit

2299-740: Is India's first Infotainment industrial park. Being India's largest city in the deep south, it is strategically prominent and hosts the Southern Air Command headquarters of the Indian Air Force , the Thumba Equatorial Rocket Launching Station and the upcoming Vizhinjam International Seaport . Thiruvananthapuram is a major tourist centre, known for the Padmanabhaswamy Temple , the beaches of Kovalam and Varkala ,

2420-507: Is a Public-private partnership project to improve and maintain the existing road network in the city to cater to the needs of rapid urbanisation. TRCIP has won the International Road Federation's Global Road Achievement Awards in 2015. TCRIP has also been selected by United Nations as a replicable Public Private Partnership model. It was one of the 12 Public-private partnership project case studies from across

2541-416: Is a transhipment port under construction. Vizhinjam port's location is close to the international shipping routes and, it is just 10–12 nautical miles from the busy Persian Gulf - Malacca shipping lane. The port also has a natural depth of 18 to 20 metres which can accommodate huge container ships . The berths at Vizhinjam port are designed to cater to vessels of up to 24,000 TEU . Thiruvananthapuram

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2662-487: Is a major IT and ITES hub in India. The city contributes about 40-45% of Kerala's total software exports. Thiruvananthapuram houses major multinational Technology companies like Oracle Corporation , Nissan , Allianz Technology , Envestnet , Tata Consultancy Services , Infosys , UST Global , Ernst & Young , Flytxt, Navigant , Tata Elxsi , McKinsey & Company , RR Donnelly and Quest Global. Technopark

2783-428: Is a major tourist hub in India. Kovalam and Varkala are popular beach towns near the city. Other important beaches include Poovar , Shankumugham Beach , Azhimala Beach, Vizhinjam Beach and Veli Beach. Other places of interest include Agasthyamala rain forests, Neyyar Wildlife Sanctuary , Kallar , Braemore, Ponmudi hills, Poovar , Anchuthengu backwaters, Varkala Cliffs and Kappil - Edava lakes. The city

2904-454: Is a significant economic sector. The presence of natural attractions like beaches, backwaters, hills, and plantations and attractions like heritage, history, Ayurveda , medical tourism and knowledge centres attract many tourists. The city experienced a surge of investment in the real estate, infrastructure and retail sectors in 2016–17. Port-related activity is low mainly due to the underdevelopment of ports. Vizhinjam International Seaport

3025-462: Is aided by four pairs of retro-rockets installed on inter-stage (1/2L). During staging, these eight rockets help push away the spent stage away from second stage. The second stage is powered by a single Vikas engine and carries 41.5 t (40.8 long tons; 45.7 short tons) of Earth store-able liquid propellant – unsymmetrical dimethylhydrazine (UDMH) as fuel and nitrogen tetroxide (N 2 O 4 ) as oxidiser in two tanks separated by

3146-546: Is also found in Padmanabhaswamy temple, which makes it distinct and unique from the architectural style of temples in northern and central parts of Kerala . The official language of Kerala , based at Kollam , was also identified as Tamil , by the natives of Kerala in those times. and the Chola dynasty , The place names, the dialects of Malayalam spoken, and the customs that exist in Kerala today still reveal

3267-525: Is also known for its unique style of architecture involving Kerala Architecture with British and Dravidian influences. Napier museum , Thiruvanathapuram Zoo , Padmanabha Swamy temple , Kuthira Malika palace , Kilimanoor palace and The Thiruvananthapuram Golf Club heritage building are examples of this. The main museums include Kerala Science and Technology Museum (with its attached Priyadarsini Planetarium ), Napier Museum , Kerala Soil Museum and Koyikkal Palace Museum . Agasthyamala Biosphere Reserve

3388-761: Is an officer appointed by the government , who serves as the administrative head of the TMC and implements the council's decisions based on the resolutions adopted by the council. The functions of the Municipal Corporation are managed by seven departments—engineering, health, general administration, council, accounts and revenue. For the decentralised role of TMC, eleven Zonal Offices are created. The zonal offices are in Fort, Kadakampally, Nemom , Ulloor , Attipra, Thiruvallom, Kazhakkuttom , Sreekaryam , Kudappanakunnu , Vattiyoorkavu and Vizhinjam . The functions of

3509-598: Is built on seven hills by the seashore and is at 8°30′N 76°54′E  /  8.5°N 76.9°E  / 8.5; 76.9 on the west coast, near the southern tip of mainland India. The city is on the west coast of India and is bounded by the Laccadive Sea to its west and the Western Ghats to its east. The average elevation of the city is 16 ft (4.9 m) above sea level. The Geological Survey of India has identified Thiruvananthapuram as

3630-631: Is developed to ease congestion on the central station and it acts as a satellite station to Thiruvananthapuram Central. Thiruvananthapuram Central is the busiest railway station in Kerala. Other railway stations in the city are Thiruvananthapuram Pettah , Nemom railway station , Veli railway station and Kazhakoottam railway station . Being the southernmost municipal corporation in India, many long train services of Indian Railways originate from Thiruvananthapuram like Trivandrum Rajdhani Express, Thiruvananthapuram - Silchar Superfast Express and Kochuveli - Amritsar Weekly Express . There are plans to develop

3751-589: Is essential for both military logistics and civil aviation in the southern part of the country. Thiruvananthapuram is the headquarters of the Southern Air Command (SAC) of the Indian Air Force. The city has a climate that lies on the border between a tropical savanna climate ( Köppen Aw ) and a tropical monsoon climate ( Am ). As a result, its only distinct seasons relate to rainfall rather than temperature. The mean maximum temperature

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3872-548: Is expected to be replaced by lighter, silicon carbide coated carbon–carbon nozzle divergent. The new nozzle was hot tested at facilities of IPRC, Mahendragiri in March and April 2024. This substitution should increase payload capacity of PSLV by 15 kilograms (33 lb). ISRO successfully completed 665-second hot test of 3D printed PS4 engine, produced by Wipro 3D through selective laser melting . A total of 19 weld joints were eliminated through this process while engine's 14 components were reduced to one piece. It saved 60% of

3993-663: Is further aided by state institutions such as the State Central Library , one of the oldest public libraries in India, which was established in 1829, and other major libraries including the Thiruvananthapuram Corporation Central library, and the Kerala University Library . Thiruvananthapuram has been a hub of classical music since the days of Maharaja of Travancore , Swathi Thirunal . Thiruvananthapuram

4114-421: Is gimbaled (±3°) to provide pitch, yaw and roll control during powered flight. Coast phase attitude control is provided by six 50N RCS thrusters. The stage is pressurized by Helium and carries 1,600 kg (3,500 lb) to 2,500 kg (5,500 lb) of propellant depending on the mission requirements. PS4 has three variants L1.6, L2.0 and L2.5 based on propellant tank capacity. On PSLV-C29/TeLEOS-1 mission,

4235-700: Is known for many music festivals like the Navarathri Music Festival, one of the oldest festivals of its kind in South India, Swathi Sangeethotsavam , Soorya Music fest, Neelakanta Sivan Music Fest and many other music festivals are organised by various cultural groups. The 111-day-long Soorya Festival is the biggest art and cultural event in Kerala . The Soorya Festival features film festivals, theatre festivals, dance, music, painting and photography exhibitions. The Malayalam film Industry

4356-607: Is listed in UNESCO 's World Network of Biosphere Reserves . Thiruvananthapuram is known as the "Evergreen City of India" because of its green landscapes and the presence of many public parks. Thiruvananthapuram has historically been a cultural hub in Southern India due to the development of arts, architecture and liberal customs by the rulers of erstwhile Thiruvananthapuram. As a testimony to this, renowned artists like Maharaja Swathi Thirunal and Raja Ravi Varma hail from

4477-599: Is made of maraging steel and has an empty mass of 30,200 kg (66,600 lb). Pitch and yaw control during first stage flight is provided by the Secondary Injection Thrust Vector Control (SITVC) System, which injects an aqueous solution of strontium perchlorate into the S139 exhaust divergent from a ring of 24 injection ports to produce asymmetric thrust. The solution is stored in two cylindrical aluminium tanks strapped to

4598-513: Is made out of 7075 aluminum alloy with a 3 mm thick steel nose-cap. The two halves of fairing are separated using a pyrotechnic device based jettisoning system consisting of horizontal and lateral separation mechanisms. To protect the spacecraft from damage due to excessive acoustic loads during launch, the heatshield interior is lined with acoustic blankets. ISRO has envisaged a number of variants of PSLV to cater to different mission requirements. There are currently two operational versions of

4719-560: Is now a region in the present-day Thiruvananthapuram, was the capital of the Ay dynasty. Vizhinjam was an important port city from as early as the second century BC. During the Ay dynasty's rule, Thiruvananthapuram witnessed many battles in which the Chola and Pandyan dynasties attempted to capture the port town. After the death of king Vikramaditya Varaguna in 925 AD, the glory of the Ays departed and almost all their territories became part of

4840-551: Is one of Asia's largest film festivals in terms of viewer participation. In addition to various film festivals, the presence of the Central Board of Film Certification 's regional office, many movie studios and production facilities like the Uma Studio, Chitranjali Studio , Merryland Studio , Kinfra Film and Video Park and Vismayas Max contribute to the growth of Thiruvananthapuram as a centre of cinema. Apart from

4961-616: Is planned to use a GSLV, modified by replacing it's Cryogenic Upper Stage(CUS) with the PS-4 as the RLV would not required the excess thrust created by the CUS. Payload fairing of PSLV, also referred as its "Heatshield" consists of a conical upper section with spherical nose-cap, a cylindrical middle section and a lower boat-tail section. Weighing 1,182 kilograms (2,606 lb), it has 3.2 meter diameter and 8.3 meter height. It has Isogrid construction and

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5082-598: Is the capital city of the Indian state of Kerala . It is the largest and most populous city in Kerala and it is also a major port city. Thiruvananthapuram is where Asia's first space university, the Indian Institute of Space Science and Technology located, and India's first IT park, Technopark Trivandrum is in Thiruvananthapuram. The city also includes India’s first deep-water trans-shipment port,

5203-418: Is the fastest-growing district in Kerala. Thiruvananthapuram was listed as one of the top ten cities in India on Vibrancy and Consumption Index by a study conducted by global financial services firm Morgan Stanley . State- and central-government employees make up a large percentage of the city's workforce. Thiruvananthapuram is a major aerospace research centre in India. The Vikram Sarabhai Space Centre ,

5324-478: Is the largest information-technology park in India in terms of built-up area. It is the largest employment base campus in Kerala with 52,000 IT/ITES professionals and about 400 companies. Other IT, media and industrial campuses include Kinfra Film and Video Park , Kinfra Apparel Park, B-HUB and Chithranjali Film Complex . Other major IT, biotechnology and industrial campuses include Technocity , Bio 360 Life sciences park and Digital Science Park . Tourism

5445-470: The Ay dynasty during ancient and medieval ages, which was a Tamil kingdom based in the southernmost part of the Indian subcontinent. Ay kingdom had experienced attacks and conquests by Cholas and Pandyas in various periods. Later it became a part of Venad in late Middle Ages, which was eventually expanded as the powerful kingdom of Travancore in 18th century CE. The Tamil -Dravidian kind of architecture

5566-726: The Border Security Force (BSF) are also present. Thiruvananthapuram also houses a large army cantonment in Pangode which houses some regiments of the Indian Army . In the city there is a Consulate of the United Arab Emirates , a Consulate of the Maldives , and Honorary Consulates of Sri Lanka , Russia and Germany . The Kerala Water Authority supplies the city with water that is sourced from

5687-684: The Chera dynasty . During the tenth century, the Cholas attacked and sacked Vizhinjam and surrounding regions. The port in Vizhinjam and the historic education center of Kanthalloor Sala were also destroyed by Cholas during this period. A branch of the Ay family, which had controlled the Padmanabhaswamy Temple , merged with the Kingdom of Venad in the 12th century. Present-day Thiruvananthapuram city, district, and Kanyakumari district , were parts of

5808-684: The H-IIA liquid-fueled launch vehicle, the M-V solid-fuel launch vehicle, and several observation rockets from each agency. The H-IIA is a launch vehicle that improved reliability while reducing costs by making significant improvements to the H-II, and the M-V was the world's largest solid-fuel launch vehicle at the time. In November 2003, JAXA's first launch after its inauguration, H-IIA No. 6, failed, but all other H-IIA launches were successful, and as of February 2024,

5929-544: The Indian Institute of Space Science and Technology , National Centre for Earth Science Studies and a campus of the Indian Institutes of Science Education and Research . The city is home to media institutions like Toonz Animation India and Tata Elxsi Ltd , and also to Chitranjali Film Studio , one of the first film studios in Malayalam Cinema , and Kinfra Film and Video Park at Kazhakoottom, which

6050-579: The International Space Station . To be able to launch smaller mission on JAXA developed a new solid-fueled rocket, the Epsilon as a replacement to the retired M-V . The maiden flight successfully happened in 2013. So far, the rocket has flown six times with one launch failure. In January 2017, JAXA attempted and failed to put a miniature satellite into orbit atop one of its SS520 series rockets. A second attempt on 2 February 2018

6171-607: The Karamana River ; most of it is drawn from the Aruvikkara and Peppara reservoirs, and it is treated and purified at the Aruvikkara pumping stations. The Wellington Water Works, commissioned in 1933, is one of the oldest city water supply schemes in India. The sewage water is treated at Muttathara sewage-treatment plant, which handles 32 million litres per day. The city area is divided into seven blocks for

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6292-642: The Kerala Legislative Assembly and the state secretariat, which is housed in the Kerala Government Secretariat complex . Thiruvananthapuram has two parliamentary constituencies— Attingal and Thiruvananthapuram —and elects five Members of the Legislative Assembly ( MLAs ) to the state legislature. The Thiruvananthapuram City Police is the main law-enforcement agency in the city. It is headed by

6413-637: The PSLV-C53 campaign, the PS4-OP is referred to as the PSLV Orbital Experimental Module (POEM) , and it hosted six payloads. POEM was the first PSLV fourth stage based orbital platform to be actively stabilised using Helium based cold gas thrusters after the primary mission and stage passivization. The Reusable Launch Vehicle Technology Demonstration program is an prototype spaceplane project currently being processed by ISRO.It

6534-547: The Rajpramukh of the Travancore-Cochin Union from 1 July 1949 until 31 October 1956. When the state of Kerala was formed on 1 November 1956, Thiruvananthapuram became its capital. With the establishment of Thumba Equatorial Rocket Launching Station (TERLS) in 1962, Thiruvananthapuram became the cradle of India's ambitious space programme. The first Indian space rocket was developed and launched from

6655-511: The United Launch Alliance . The National Security Space Launch (NSSL) competition has selected two EELV successors, the expendable Vulcan Centaur and partially reusable Falcon 9 , to provide assured access to space. Iran has developed an expendable satellite launch vehicle named Safir SLV . Measuring 22 m in height with a core diameter of 1.25 m, with two liquid propellant stages, a single thrust chambered first stage and

6776-555: The Vikram Sarabhai Space Centre (VSSC) in the outskirts of the city in 1963. Several establishments of the Indian Space Research Organisation (ISRO) were later established in Thiruvananthapuram. A significant milestone in the city's recent history was the establishment of Technopark —India's first IT park—in 1995. Technopark has developed into the largest IT park in the geographical area, employing around 62,000 people in 450 companies. Thiruvananthapuram

6897-593: The Vizhinjam International Seaport Thiruvananthapuram , as well as the Sree Padmanabhaswamy Temple , known as the richest temple in the world. Thiruvananthapuram is where India's space program began, with the Vikram Sarabhai Space Centre and the headquarters of Liquid Propulsion Systems Centre located here. Thiruvananthapuram is also known for its cultural heritage, being associated with

7018-424: The poverty line in the city was 11,667. Thiruvananthapuram has witnessed massive immigration of workers from northern India, mainly Punjab , Haryana , and Madhya Pradesh , and Eastern India, mainly West Bengal and Bihar , and from neighbouring countries like Sri Lanka , the Maldives , Nepal and Bangladesh . The Corporation of Thiruvananthapuram or TMC oversees and manages the civic infrastructure of

7139-600: The 1960s–1970s, the country India started with a sounding rocket in the 1960s and 1970s and advanced its research to deliver the Satellite Launch Vehicle-3 and the more advanced Augmented Satellite Launch Vehicle (ASLV), complete with operational supporting infrastructure by the 1990s. Japan launched its first satellite, Ohsumi , in 1970, using ISAS' L-4S rocket. Prior to the merger, ISAS used small Mu rocket family of solid-fueled launch vehicles, while NASDA developed larger liquid-fueled launchers. In

7260-497: The 2011 national census, the Corporation of Thiruvananthapuram, which occupies an area of 214 km (83 sq mi), had a population of 957,730. The city's population density was 4,454/km (11,540/sq mi). The Urban Agglomeration had a population of 1,687,406 in 2011. The sex ratio is 1,040 females for every 1,000 males, which is higher than the national average. Thiruvananthapuram's literacy rate of 93.72% exceeds

7381-635: The Annual Survey of India's City-Systems (ASICS) conducted by the Janaagraha Centre for Citizenship and Democracy. The city was also selected as the best governed city in India in a survey conducted by Janaagraha Centre for citizenship and democracy in 2017. The city takes its name from the Malayalam word thiru-anantha-puram ( തിരുവനന്തപുരം [t̪iɾuʋɐnɐn̪d̪ɐpuɾɐm] ), meaning "The City of Lord Ananta", referring to

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7502-519: The CA variant has 400 kg (880 lb) less propellant when compared to its standard version. It currently has capability to launch 1,100 kg (2,400 lb) to 622 km (386 mi) Sun-synchronous orbit . PSLV-XL is the upgraded version of Polar Satellite Launch Vehicle in its standard configuration boosted by more powerful, stretched strap-on boosters with 12 tonne propellant load. Weighing 320 t (310 long tons; 350 short tons) at lift-off,

7623-614: The H-IIA had successfully launched 47 of its 48 launches. JAXA plans to end H-IIA operations with H-IIA Flight No. 50 and retire it by March 2025. JAXA operated the H-IIB , an upgraded version of the H-IIA, from September 2009 to May 2020 and successfully launched the H-II Transfer Vehicle six times. This cargo spacecraft was responsible for resupplying the Kibo Japanese Experiment Module on

7744-776: The Ofek satellites on September 19, 1988; April 3, 1990; and April 5, 1995. The Shavit launchers allows low-cost and high-reliability launch of micro/mini satellites to a low Earth orbit . The Shavit launcher is developed by Malam factory, one of four factories in the IAI Electronics Group. The factory is very experienced in development, assembling, testing and operating system for use in space. Thiruvananthapuram Thiruvananthapuram ( / ˌ t ɪ r uː v ə ˌ n ʌ n t ə ˈ p ʊər ə m / TIRR -oo-və- NUN -təp- OOR -əm ; Malayalam: [t̪iɾuʋɐnɐn̪d̪ɐpuɾɐm] ), formerly known as Trivandrum ,

7865-437: The PSLV Planning group under S Srinivasan to develop a vehicle capable of delivering a 600 kg payload to a 550 km sun-synchronous orbit from SHAR began in 1978. Among 35 proposed configurations, four were picked; by November 1980, a vehicle configuration with two strap-ons on a core booster (S80) with 80 tonne solid propellant loading each, a liquid stage with 30 tonne propellant load (L30), and an upper stage called

7986-678: The PSLV — the core-alone (PSLV-CA) without strap-on motors, and the (PSLV-XL) version, with six extended length (XL) strap-on motors carrying 12 tonnes of HTPB based propellant each. These configurations provide wide variations in payload capabilities up to 3,800 kg (8,400 lb) in LEO and 1,800 kg (4,000 lb) in sun-synchronous orbit. The standard or "Generic" version of the PSLV, PSLV-G had four stages using solid and liquid propulsion systems alternately and six strap-on motors (PSOM or S9) with 9 tonne propellant loading. It had capability to launch 1,678 kg (3,699 lb) to 622 km (386 mi) into sun-synchronous orbit. PSLV-C35

8107-412: The Perigee-Apogee System (PAS) was being considered. By 1981, confidence grew in remote sensing spacecraft development with the launch of Bhaskara-1 , and the PSLV project objectives were upgraded to have the vehicle deliver a 1000 kg payload into a 900 km SSO . As technology transfer of Viking rocket engine firmed up, a new lighter configuration with the inclusion of a liquid powered stage

8228-400: The TMC include water supply, drainage and sewerage, sanitation, solid-waste management, and building regulation. The Thiruvananthapuram Development Authority is responsible for the statutory planning and development of the greater Thiruvananthapuram region. As the seat of the Government of Kerala , Thiruvananthapuram is home to not only the offices of the local governing agencies but also

8349-408: The United States purchase ELV launches. NASA is a major customer with the Commercial Resupply Services and Commercial Crew Development programs, also launching scientific spacecraft. The vast majority of launch vehicles for its missions, from the Redstone missile to the Delta , Atlas , Titan and Saturn rocket families, have been expendable. As its flagship crewed exploration replacement for

8470-443: The all-India average of 74%. It is a historical city where Malayalees form the vast majority of Thiruvananthapuram's population. There are also minorities like the Tamils and North Indians residing here. According to the 2011 census, 68.5% of the population is Hindu , 16.7% Christians and 13.7% Muslims . The remainder of the community includes Jains , Jews , Sikhs , Buddhists and other religions which account for 0.06% of

8591-411: The ancient political and cultural history of the city was almost entirely independent from that of the rest of Kerala. The Chera dynasty governed the area of Malabar Coast between Alappuzha in the south to Kasaragod in the north. This included Palakkad Gap , Coimbatore , Salem , and Kolli Hills . The region around Coimbatore was ruled by the Cheras during Sangam period between c. first and

8712-443: The anglicised name of the town), when the government decided to reinstate the city's original name Thiruvananthapuram. Thiruvananthapuram is a relatively modern region with trading traditions dating back to 1000 BCE. It is believed that the ships of King Solomon landed in a port called Ophir (now Poovar ) in Thiruvananthapuram in 1036 BCE. The city was the trading post of spices , sandalwood and ivory . However,

8833-519: The backwaters of Poovar and Anchuthengu and its Western Ghats tracts of Ponmudi and the Agastya Mala . In 2012, Thiruvananthapuram was named the best Kerala city to live in, by a field survey conducted by The Times of India . In 2013, the city was ranked the fifteenth best city to live in India, in a survey conducted by India Today . Thiruvananthapuram was ranked the best Indian city for two consecutive years, 2015 and 2016, according to

8954-562: The beginning, NASDA used licensed American models. The first model of liquid-fueled launch vehicle developed domestically in Japan was the H-II , introduced in 1994. NASDA developed the H-II with two goals in mind: to be able to launch satellites using only its own technology, such as the ISAS, and to dramatically improve its launch capability over previous licensed models. To achieve these two goals,

9075-451: The city by October. The dry season sets in by December. The lowest temperature recorded in the city core was 17.8 °C (64.0 °F) on 6 January 1974 and the highest temperature was 38.2 °C (100.8 °F) on 21 February 2019. At the airport, the lowest temperature recorded was 16.4 °C (61.5 °F) on 15 January 1975 and the highest temperature was 36.3 °C (97.3 °F) on 5 May 1998. According to provisional results of

9196-485: The city's 100 wards. Each ward elects a councillor to the Corporation of Thiruvananthapuram. TMC has the power to act as the local government of the city. TMC is headed by the Mayor, who is elected from among the councillors. The Mayor is responsible for the overall supervision and control of the administrative functions of the TMC. The corporation discharges its services through standing committees. The corporation secretary

9317-429: The city, sandy loam soil is found, and on hilly eastern parts of the district, rich dark brown loam of granite origin is found. The Thiruvananthapuram Corporation is spread over 214.86 km (82.96 sq mi). The wider Thiruvananthapuram metropolitan area comprises Thiruvananthapuram corporation, three municipalities and 27 panchayats, as of 2011. Being the largest city in India's southern tip region, it

9438-495: The city. Prominent social reformers such as Sri Narayana Guru , Chattampi Swamikal , Ayyankali , Vakkom Moulavi and C. V. Raman Pillai also are from Thiruvananthapuram. Two of the three Malayalam triumvirate poets , Ulloor S. Parameswara Iyer and Kumaran Asan are from Thiruvananthapuram. Annual literature festivals like the Kovalam Literary Festival, are held in the city. Literary development

9559-826: The city. Other major highways in the city are State Highway 2 and State Highway 45 . The Mahatma Gandhi Road is the main arterial road in the city. Another important road is the Kowdiar Road, which is also known as the Royal Road, as it leads to the Kowdiar Palace. Thiruvananthapuram is a divisional headquarters in the Southern Railway zone of the Indian Railways . Long-distance trains originate from Thiruvananthapuram Central and Kochuveli railway terminals . Kochuveli railway terminal

9680-611: The city. The main bus stations in the city are the Central Bus Station in Thampanoor , where most of the long-distance buses ply from, and the city bus station in East Fort , where most city buses ply from. Three-wheeled, yellow and black auto-rickshaws and taxis, are other popular forms of public transport. Thiruvananthapuram Light Metro is a fully elevated metro rail – rapid transit system planned to ease

9801-810: The company oversees the team responsible for integrating and preparing launch vehicles. The rockets themselves are designed and manufactured by other companies: ArianeGroup for the Ariane 6 and Avio for the Vega. The launch infrastructure at the CSG is owned by the European Space Agency , while the land itself belongs to and is managed by CNES , the French national space agency. During the 1960s and 1970s, India initiated its own launch vehicle program in alignment with its geopolitical and economic considerations. In

9922-631: The congestion in the city. Thiruvananthapuram has a well-developed road transport infrastructure. The roads in the city are maintained by the Thiruvananthapuram Roads Development Company Limited (TRDCL) and Kerala PWD . TRDCL manages the 42 km city roads which come under the Thiruvananthapuram City Roads Improvement Project (TRCIP), which is the first urban road project in India. TRCIP

10043-829: The core solid rocket motor and pressurised with nitrogen . Underneath these two SITVC tanks, Roll Control Thruster (RCT) modules with small bi-propellant (MMH/MON) liquid engine are also attached. On the PSLV-G and PSLV-XL, first stage thrust is augmented by six strap-on solid boosters . Four boosters are ground-lit and the remaining two ignite 25 seconds after launch. The solid boosters carry 9 t (8.9 long tons; 9.9 short tons) or 12 t (12 long tons; 13 short tons) (for PSLV-XL configuration) propellant and produce 510 kN (110,000 lb f ) and 719 kN (162,000 lb f ) thrust respectively. Two strap-on boosters are equipped with SITVC for additional attitude control. The PSLV-CA uses no strap-on boosters. First stage separation

10164-594: The deity of the Sri Padmanabhaswamy Temple located in the city. Thiruvananthapuram is also known in literature, and popular reference as Ananthapuri , derived from the Sanskrit word Syanandurapuram , meaning "The City of Bliss" in Carnatic kirtanas composed by Swathi Thirunal , erstwhile Maharaja of Travancore . The city was officially referred to as Trivandrum until 1991 (Trivandrum being

10285-628: The direct control of the British Empire at any time, the city featured prominently in India's freedom struggle . The Indian National Congress had a very active presence in Thiruvananthapuram. A meeting of the Indian National Congress presided by Dr Pattabhi Sitaramaiah was held here in 1938. The Thiruvananthapuram Municipality came into existence in 1920 as the first municipality in the Travancore region. The municipality

10406-465: The end of British rule in 1947, Travancore chose to join the Indian union. The first popularly elected ministry, headed by Pattom Thanu Pillai , was installed in office on 24 March 1948. In 1949, Thiruvananthapuram became the capital of Thiru-Kochi , the state formed by the integration of Travancore with its northern neighbour, the Kochi . The king of Travancore , Chitra Thirunal Bala Rama Varma , became

10527-596: The execution of the sewage system. Electricity is supplied by the Kerala State Electricity Board . Fire services are handled by the Kerala Fire And Rescue Services . Thiruvananthapuram's economy comprises Information Technology , education, plantations, aerospace, commerce and tourism . Thiruvananthapuram district contributes 10.31%, of the state's GDP. With an economic growth rate of 13.83%, Thiruvananthapuram

10648-558: The famous Padmanabhaswamy Temple , the city's architecture is championed by the Napier Museum and Thiruvananthapuram Zoo , one of the oldest zoos in India. Other architectural landmarks include Kuthira Malika Palace , Kowdiar Palace , Attukal temple , Beemapally Mosque , Connemara Market , and the Mateer Memorial Church . Thiruvananthapuram was the main centre of Laurie Baker 's architecture. Along with

10769-647: The fourth centuries CE and it served as the eastern entrance to the Palakkad Gap , the principal trade route between the Malabar Coast and Tamil Nadu . However the southern region of present-day Kerala state (The coastal belt between Thiruvananthapuram and Alappuzha ) was under Ay dynasty , who was more related to the Pandya dynasty of Madurai . The early rulers of the city were the Ays . Vizhinjam , which

10890-504: The fourth stage demonstrated re-ignition capability for the first time which was used in many subsequent flights to deploy payloads in multiple orbits on a single campaign. As a space debris mitigation measure, PSLV fourth stage gets passivated by venting pressurant and propellant vapour after achieving main mission objectives. Such passivation prevents any unintentional fragmentation or explosion due to stored internal energy. The niobium alloy nozzle used on twin engines of fourth stage

11011-541: The fourth stage had its own power generation capability as it was augmented with an array of fixed solar cells around PS4 propellant tank. The three payloads hosted on PS4-OP were the Advanced Retarding Potential Analyzer for Ionospheric Studies (ARIS 101F) by IIST , an experimental AIS payload by ISRO, and AISAT by Satellize . To function as orbital platform, fourth stage was put in spin-stabilized mode using its RCS thrusters. On

11132-634: The headquarters of Kerala Prisons and Correctional Services . The Southern Air Command of the Indian Air Force is headquartered in the city. There are two state armed police battalions and a unit of the Central Reserve Police Force (CRPF) based in Thiruvananthapuram. The CRPF has a Group Headquarters (GHQ) located at Pallipuram . In addition to this, three units of the Central Industrial Security Force (CISF) and Sector Headquarters (SHQ) of

11253-409: The king Marthanda Varma expanded the territory, founded the princely state of Travancore and made Thiruvananthapuram its capital. Travancore became the most dominant state in Kerala by defeating the powerful Zamorin of Kozhikode in the battle of Purakkad in 1755. Following India's independence in 1947, Thiruvananthapuram became the capital of Travancore–Cochin state and remained so until

11374-456: The major festivals of Onam , Vishu , Deepavali , and Navaratri , Christian and Islamic festivals like Christmas , Eid ul-Fitr , Bakrid and Milad-e-sheriff , the diverse ethnic populace of the city celebrates several local festivals like Attukal Pongala , Beemapally Uroos , Vettukaad Church Festival , Padmanabhaswamy Temple Aaraattu and Lakshadeepam festival. During the Onam festival,

11495-508: The maximum altitude of 68 kilometres. The Israel Space Agency is one of only seven countries that both build their own satellites and launch their own launchers. The Shavit is a space launch vehicle capable of sending payload into low Earth orbit . The Shavit launcher has been used to send every Ofeq satellite to date. The development of the Shavit began in 1983 and its operational capabilities were proven on three successful launches of

11616-594: The most significant and leading centre of ISRO , and several space-related, state-owned ISRO centres such as Thumba Equatorial Rocket Launching Station , Liquid Propulsion Systems Centre , and ISRO Inertial Systems Unit are based in Thiruvananthapuram. The BrahMos Aerospace Trivandrum Limited is one of the leading missile integration and defence production units in India. Other enterprises include Travancore Titanium Products , Kerala Automobiles Limited , MILMA , English Indian Clays , Keltron , Trivandrum Rubber Works and HLL Lifecare Limited . Thiruvananthapuram

11737-460: The musical contributions of Swathi Thirunal Rama varma and the artistic legacy of painter Raja Ravi Varma .Notable beaches in Thiruvananthapuram include Kovalam , Varkala , Shankumugham Beach ,and Poovar .The encompassing urban agglomeration population is around 1.68 million. Located on the west coast of India near the extreme south of the mainland, Thiruvananthapuram is a major information technology hub in Kerala and contributes 55% of

11858-632: The new Indian state of Kerala was formed in 1956. Thiruvananthapuram is a notable academic and research hub and home to the University of Kerala , APJ Abdul Kalam Technological University , the regional headquarters of Indira Gandhi National Open University , and many other schools and colleges. Thiruvananthapuram is also home to research centers such as the National Institute for Interdisciplinary Science and Technology , Indian Space Research Organisation 's Vikram Sarabhai Space Centre ,

11979-626: The partially reusable Space Shuttle , NASA's newest ELV, the Space Launch System flew successfully in November 2022 after delays of more than six years. It is planned to serve in a major role on crewed exploration programs going forward. The United States Air Force is also an ELV customer, having designed the Titan, Atlas, and Delta families. The Atlas V from the 1994 Evolved ELV (EELV) program remains in active service, operated by

12100-558: The people is Keralite cuisine , which is generally characterised by an abundance of coconut and spices . Other South Indian cuisines, as well as Chinese and North Indian cuisines, are popular. Thiruvananthapuram has many restaurants offering Arabic , Italian , Thai and Mexican cuisines. The majority of bus services are conducted by government operators. There are also private operators. The city buses operated by Kerala State Road Transport Corporation (KSRTC) are an important and reliable means of public transport available in

12221-491: The population; 0.85% did not state a belief in the census. Malayalam , the official state language, is the dominant language in Thiruvananthapuram City: English is also used, mainly by the white-collar workforce. Tamil has the most speakers after Malayalam . The city also has a few Tulu , Kannada, Konkani , Dhivehi , Telugu and Hindi speakers. As per the 2001 census, the population below

12342-482: The previous record held by Russia for the highest number of satellites sent to space on a single launch, until 24 January 2021, when SpaceX launched the Transporter-1 mission on a Falcon 9 rocket carrying 143 satellites into orbit. Payloads can be integrated in tandem configuration employing a Dual Launch Adapter. Smaller payloads are also placed on equipment deck and customized payload adapters. Studies by

12463-458: The princely state of Thiruvithamkoor and Thiruvananthapuram was made the capital in 1795 after shifting the capital from Padmanabhapuram in Kanyakumari district. Thiruvananthapuram became a prominent city in Kerala under Marthanda Varma . As a result of the annexation of neighbouring chiefdoms, the artists and scholars from these places migrated to Thiruvananthapuram, turning it into

12584-542: The production time and drastically decreased the amount of raw materials used per engine, from 565 kg to 13.7 kg of metal powder. PS4 has carried hosted payloads like AAM on PSLV-C8, Rubin 9.1 / Rubin 9.2 on PSLV-C14 and mRESINS on PSLV-C21. But now, PS4 is being augmented to serve as a long duration orbital platform after completion of primary mission. PS4 Orbital Platform (PS4-OP) will have its own power supply, telemetry package, data storage and attitude control for hosted payloads. On PSLV-C37 and PSLV-C38 campaigns, as

12705-454: The remaining four vehicles every six months. The PSLV has four stages, using solid and liquid propulsion systems alternately. The first stage, one of the largest solid rocket boosters in the world, carries 138 t (136 long tons; 152 short tons) of hydroxyl-terminated polybutadiene -bound (HTPB) propellant and develops a maximum thrust of about 4,800 kN (1,100,000 lb f ). The 2.8 m (9 ft 2 in) diameter motor case

12826-548: The second and fourth stages of the PSLV as well as the Reaction control systems (RCS) are developed by the Liquid Propulsion Systems Centre (LPSC) at Valiamala near Thiruvananthapuram , kerala . The solid propellant motors are processed at Satish Dhawan Space Centre (SHAR) at Sriharikota , Andhra Pradesh , which also carries out launch operations. The aerodynamic characterization research

12947-522: The solid terminal stage (S2) was replaced with a pressure fed liquid fueled stage (L1.8 or LUS) powered by twin engines derived from roll control engines of the first stage. Apart from increasing precision, liquid upper stage also absorbed any deviation in performance of solid third stage. The final configuration of PSLV-D1 to fly in 1993 was (6 × S9 + S125) + L37.5 + S7 + L2. The inertial navigation systems are developed by ISRO Inertial Systems Unit (IISU) at Thiruvananthapuram . The liquid propulsion for

13068-463: The state government conducts several cultural events for a week in the city. The Attukal Pongala festival attracts millions of women devotees from across India and abroad. It is the largest gathering of women in the world. Germany's Goethe Zentrum, France's Alliance Française and Russia's Gorky Bhavan centres host a wide range of events and programmes throughout the year. The general cuisine of

13189-434: The state was started during the same period. Sanskrit College , Ayurveda College, Law College and a second-grade college for women were started by Moolam Thirunal (1885–1924). The early 20th century was an age of tremendous political and social changes in the city. The Sree Moolam Popular Assembly , established in 1904, was the first democratically elected legislative council in any Indian state. Despite not being under

13310-410: The state's software exports as of 2016. Referred to by Mahatma Gandhi as the "Evergreen city of India", the city is characterised by its undulating terrain of low coastal hills. The present regions that constitute Thiruvananthapuram were ruled by the Ays who were related to feudatories of the Chera dynasty . In the 12th century, it was conquered by the Kingdom of Venad . In the 18th century,

13431-486: The vehicle uses larger strap-on motors (PSOM-XL or S12) to achieve higher payload capability. On 29 December 2005, ISRO successfully tested the improved version of strap-on booster for the PSLV. The first use of PSLV-XL was the launch of Chandrayaan-1 by PSLV-C11. The payload capability for this variant is 1,800 kg (4,000 lb) to Sun-synchronous orbit. PSLV-DL variant has only two strap-on boosters with 12 tonne propellant load on them. PSLV-C44 on 24 January 2019

13552-763: The world which fulfil the Sustainable Development Goals of the UN Agenda 2030. Thiruvananthapuram is served by National Highway 66 of India's National Highways system . The city is connected to the North-South Corridor of the National Highway system at Aralvaimozhi , which is 80 km south of the city. The State Highway 1 , which commonly known as the Main Central Road is an arterial highway in

13673-435: Was conceived as a three-staged version of PSLV with its six strap-on boosters and second liquid stage removed. The total lift-off mass of PSLV-3S was expected to be 175 tonnes with capacity to place 500 kg in 550 km low Earth orbit . PSLV - XL: As of 1 January 2024 the PSLV has made 60 launches, with 57 successfully reaching their planned orbits, two outright failures and one partial failure, yielding

13794-543: Was conducted at the National Aerospace Laboratories ' 1.2m Trisonic Wind Tunnel Facility. The PSLV was first launched on 20 September 1993. The first and second stages performed as expected, but an attitude control problem led to the collision of the second and third stages at separation, and the payload failed to reach orbit. After this initial setback, the PSLV successfully completed its second mission in 1994. The fourth launch of PSLV suffered

13915-429: Was converted into a corporation on 30 October 1940, during the period of Chitra Thirunal Bala Rama Varma , who took over in 1931. The city witnessed multi-faceted progress during his period. The promulgation of the " Temple Entry Proclamation " (1936) was an act that underlined social emancipation. This era also saw the establishment of the University of Travancore in 1937, which later became Kerala University . With

14036-503: Was selected. Funding was approved in July 1982 for the finalized design, employing a single large S125 solid core as first stage with six 9 tonne strap-ons (S9) derived from the SLV-3 first stage, liquid fueled second stage (L33), and two solid upper stages (S7 and S2.) This configuration needed further improvement to meet the orbital injection accuracy requirements of IRS satellites, and hence,

14157-563: Was started in Thiruvananthapuram. The first Malayalam feature film, Vigathakumaran directed by J. C. Daniel was released in Thiruvananthapuram. J. C. Daniel is considered the father of Malayalam film industry. He also established the first film studio in Kerala, the Travancore National Pictures at Thiruvananthapuram in 1926. The International Film Festival of Kerala (IFFK), which is held every year in December,

14278-667: Was successful, putting a four kilogram CubeSat into Earth orbit. The rocket, known as the SS-520-5, is the world's smallest orbital launcher. Roscosmos uses a family of several launch rockets, the most famous of them being the R-7 , commonly known as the Soyuz rocket that is capable of launching about 7.5 tons into low Earth orbit (LEO). The Proton rocket (or UR-500K) has a lift capacity of over 20 tons to LEO. Smaller rockets include Rokot and other Stations. Several governmental agencies of

14399-463: Was the first flight to use PSLV-DL variant of Polar Satellite Launch Vehicle. It is capable of launching 1,257 kg (2,771 lb) to 600 km (370 mi) Sun-synchronous orbit. PSLV-QL variant has four ground-lit strap-on boosters, each with 12 tonnes of propellant. PSLV-C45 on 1 April 2019 was the first flight of PSLV-QL. It has the capacity to launch 1,523 kg (3,358 lb) to 600 km (370 mi) Sun-synchronous orbit. PSLV-3S

14520-418: Was the last operational launch of PSLV-G before its discontinuation. The PSLV-CA , CA meaning "Core Alone", model premiered on 23 April 2007. The CA model does not include the six strap-on boosters used by the PSLV standard variant but two SITVC tanks with Roll Control Thruster modules are still attached to the side of the first stage with addition of two cylindrical aerodynamic stabilizers. The fourth stage of

14641-543: Was used to launch the Mars Orbiter Mission , India's first interplanetary probe. In June 2018, the Union Cabinet approved ₹ 6,131 crore (equivalent to ₹ 72 billion or US$ 860 million in 2023) for 30 operational flights of the PSLV scheduled to take place between 2019 and 2024. ISRO is working towards handing over the production and operation of PSLV to private industry through

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