The Pioneer Venus Orbiter , also known as Pioneer Venus 1 or Pioneer 12 , was a mission to Venus conducted by NASA as part of the Pioneer Venus project . Launched in May 1978 atop an Atlas-Centaur rocket, the spacecraft was inserted into an elliptical orbit around Venus on December 4, 1978. It returned data from Venus until October 1992.
121-546: The Pioneer Venus Orbiter was launched by an Atlas SLV-3D Centaur-D1AR rocket, which flew from Launch Complex 36A at the Cape Canaveral Air Force Station . The launch occurred at 13:13:00 (8:13 a.m. local time) on May 20, 1978, and deployed the Orbiter into heliocentric orbit for its coast to Venus. Venus orbit insertion occurred on December 4, 1978. Manufactured by Hughes Aircraft Company ,
242-487: A St. Augustine motel pool, in which the owner poured acid into the water during a demonstration, influenced the passage of the 1964 Civil Rights Act . Economic prosperity in the 1920s stimulated tourism to Florida and related development of hotels and resort communities. Combined with its sudden elevation in profile was the Florida land boom of the 1920s , which brought a brief period of intense land development. In 1925,
363-675: A school shooting at Stoneman Douglas High School in Parkland, Florida , leading to new gun control regulations at both the state and federal level. On June 24, 2021, a condominium in Surfside, Florida , near Miami collapsed , killing at least 97 people. The Surfside collapse is tied with the Knickerbocker Theatre collapse as the third-deadliest structural engineering failure in United States history, behind
484-604: A "Free and Independent State". The ordinance declared Florida's secession from the Union , allowing it to become one of the founding members of the Confederate States . The Confederacy received little military help from Florida; the 15,000 troops it offered were generally sent elsewhere. Instead of troops and manufactured goods, Florida did provide salt and, more importantly, beef to feed the Confederate armies. This
605-558: A Loyalist stronghold for the duration of the American Revolution . Spain regained both East and West Florida after Britain's defeat in the Revolutionary War and the subsequent Treaty of Versailles in 1783, and continued the provincial divisions until 1821. Defense of Florida's northern border with the United States was minor during the second Spanish period. The region became a haven for escaped slaves and
726-421: A Navy FLTSATCOM satellite. Weather conditions were poor that day, with thick clouds and "moderate to heavy" precipitation. The weather conditions violated one launch criteria ("The flight path of the vehicle should not be through mid level clouds 6,000 feet or greater in depth, when the freezing level is in the clouds."), the weather team reported it as an icing issue, not a lightning risk. After discussions about
847-483: A base for Indian attacks against U.S. territories, and the U.S. pressed Spain for reform. Americans of English and Scots Irish descent began moving into northern Florida from the backwoods of Georgia and South Carolina . Though technically not allowed by the government authorities, they were never able to effectively police the border region and the backwoods settlers from the United States would continue to immigrate into Florida unchecked. These migrants, mixing with
968-577: A complete Centaur upper stage burn in support of the Surveyor lunar lander program. On a nominal mission, the Centaur would boost its payload on a direct ascent trajectory to the Moon . On this test flight, NASA planned to deliver the payload, a non-functional dynamic model known as SD-1, into an orbit of 167 × 926.625 km that simulated a lunar transfer trajectory. The flight quickly ended in disaster as
1089-661: A division the Spanish Crown kept after the brief British period. The British government gave land grants to officers and soldiers who had fought in the French and Indian War in order to encourage settlement. In order to induce settlers to move to Florida, reports of its natural wealth were published in England. A number of British settlers who were described as being "energetic and of good character" moved to Florida, mostly coming from South Carolina , Georgia and England. There
1210-534: A launch vehicle for small uncrewed probes, and Agena was causing concerns to both the Air Force and NASA about its reliability. Eight Atlas-Centaur test missions were scheduled to be completed by the end of 1964, followed by the first Surveyor program launch. Centaur was upgraded to a high priority project because of this direct relation to Apollo. Meanwhile, the Department of Defense (DoD) had settled on
1331-411: A matter of seconds. It was unclear what had caused the failure at first, as tracking camera footage merely showed a large white cloud enveloping the booster followed by the explosion of the entire launch vehicle. Initial assumptions were that Atlas had suffered a LOX tank failure, either from a pressurization problem, rupture of the tank from flying debris, or structural bending/aerodynamic issues caused by
SECTION 10
#17327794800821452-713: A mixed-race population of mestizos and mulattoes . The Spanish encouraged slaves from the Thirteen Colonies to come to Florida as a refuge, promising freedom in exchange for conversion to Catholicism . King Charles II of Spain issued a royal proclamation freeing all slaves who fled to Florida and accepted conversion and baptism. Most went to the area around St. Augustine , but escaped slaves also reached Pensacola. St. Augustine had mustered an all-black militia unit defending Florida as early as 1683. The geographical area of Spanish claims in Florida diminished with
1573-513: A network of military communications satellites known as ADVENT. A constellation of ten satellites would provide round-the-clock instant communications for the three main branches of the US military. The first three would be launched on an Atlas-Agena, then the remainder on Centaur. ADVENT never got off the drawing board, but Centaur quickly found a use for several NASA planetary probe projects, namely Mariner and Surveyor . An initial lack of funds caused
1694-599: A new first stage powered by a much more powerful Russian -designed and built RD-180 twin-chamber engine. (Atlas V is not generally referred to as "Atlas-Centaur" and does not share the AC- serial numbers of the original Atlas-Centaur that had the pressure stabilized first stages.) On 20 February 1975, AC-33 launched carrying the Intelsat IV F-6 communications satellite . The flight went entirely according to plan up until BECO at T+140 seconds. During booster separation,
1815-530: A new record at the time of 26 consecutive flights with only malfunctions of the upper stages or payload. This was the last on-pad explosion at Cape Canaveral until 2016 ( SpaceX Falcon 9 pre-flight mishap ). Post-flight investigation examined several possible reasons for the booster engine shutdown, including an accidental closure of the booster fuel staging disconnect valve, an open fuel fill/drain valve, or an accidental BECO signal. These failure modes were quickly ruled out and attention quickly centered on closure of
1936-596: A number of protests occurred in Florida during the 1950s and 1960s as part of the Civil Rights Movement. In 1956–1957, students at Florida A&M University organized a bus boycott in Tallahassee to mimic the Montgomery bus boycott and succeeded in integrating the city's buses. Students also held sit-ins in 1960 in protest of segregated seating at local lunch counters, and in 1964 an incident at
2057-460: A payload of 2993 kg (that carried a mass model of the Surveyor spacecraft ). It performed propulsion and stage separation tests, following two scrubbed attempts due to bad weather. The guidance system was operated closed-loop for the first time and an attempt was made to recover the payload shroud, which was equipped with a balloon designed to release green marker dye into the ocean. The shroud
2178-484: A single word in the guidance program. The launch caused significant reappraisals of weather guidelines at Cape Canaveral. The 45th Weather Squadron uses rules developed after the incident to determine if weather conditions allow a launch. Florida Florida ( / ˈ f l ɒr ɪ d ə / FLORR -ih-də , Spanish: [floˈɾiða] ) is a state in the Southeastern region of
2299-534: A specially-enhanced version of the Atlas D vehicle for mating with Centaur stages; the Atlas was equipped with an uprated booster section, the MA-5 , which had twin turbopumps on each booster engine, and the structure reinforced for the large upper stage, along with elongated fuel tanks. Centaur development was made somewhat difficult by the insistence on modifying Atlas components rather than developing totally new ones. This
2420-495: A swivel lanyard designed to pull out an electrical plug supplying power to the booster section failed to detach, causing a voltage spike that reset the Atlas's guidance computer. The booster drifted off its flight path as a result. SECO was effected on time at T+401 seconds followed by Centaur separation and engine start, but it had become clear that the trajectory would take it into the Atlantic Ocean instead of orbit, and so
2541-539: A temporary fix was made for Atlas-Agena vehicles by equipping the valve with a manual lock that would be enabled during the pre-launch countdown. A manual E-series sustainer prevalve was also installed as a precautionary measure. An unrelated system malfunction in AC-5 was discovered when an examination of telemetry data found that a power failure had occurred in the guidance computer. As a temporary fix for Atlas-Centaur AC-6, 7, and 8, several unused components were removed from
SECTION 20
#17327794800822662-502: A warehouse in the salty air along the Florida coast and the damage was in an area not visible during a preflight examination. The Atlas used on this flight had been delivered to the Cape in 1971 and kept in storage since then, an unusually long time. In the aftermath of the accident, NASA inspected their inventory of Atlas vehicles and found several more improperly brazed pipes which needed replacement. On 26 March 1987, AC-67 failed to launch
2783-442: A year later, on 27 November 1963 at 19:03:23 GMT, AC-2 (Atlas 126D and Centaur stage #2) took place five days after President Kennedy's assassination. The redesigned Centaur stage functioned without any problems and performed a single burn to geostationary transfer orbit (GTO) (orbit of 474 x 1586 km, inclination of 30.4° and period of 105.8 minutes), where it remained as of 2021. The insulation panels were permanently attached to
2904-468: Is 3 nautical miles (3.5 mi; 5.6 km) offshore in the Atlantic Ocean and 9 nautical miles (10 mi; 17 km) offshore in the Gulf of Mexico. At 345 feet (105 m) above mean sea level , Britton Hill is the highest point in Florida and the lowest highpoint of any U.S. state. Much of the state south of Orlando lies at a lower elevation than northern Florida, and is fairly level. Much of
3025-469: Is a 312-foot (95 m) peak in Lake County . On average, Florida is the flattest state in the United States. Lake Okeechobee , the largest lake in Florida, is the tenth-largest natural freshwater lake among the 50 states of the United States and the second-largest natural freshwater lake contained entirely within the contiguous 48 states , after Lake Michigan . The longest river within Florida
3146-646: Is now the contiguous United States to be visited and settled by Europeans. The earliest known European explorers came with Juan Ponce de León . Ponce de León spotted and landed on the peninsula on April 2, 1513. He named it Florida (colloquially la Florida) in recognition of the flowery, verdant landscape and because it was the Easter season, which the Spaniards called Pascua Florida (Festival of Flowers). The following day they came ashore to seek information and take possession of this new land. The story that he
3267-509: Is the St. Johns River, at 310 miles (500 km) long. The drop in elevation from its headwaters South Florida to its mouth in Jacksonville is less than 30 feet (9.1 m). The climate of Florida is tempered somewhat by the fact that no part of the state is distant from the ocean. North of Lake Okeechobee , the prevalent climate is humid subtropical ( Köppen : Cfa ), while areas south of
3388-431: Is the only state that borders both the Gulf of Mexico and the Atlantic Ocean. With a population of over 21 million, it is the third-most populous state in the United States and ranks eighth in population density as of 2020. Florida spans 65,758 square miles (170,310 km ), ranking 22nd in area among the states. The Miami metropolitan area , anchored by the cities of Miami , Fort Lauderdale , and West Palm Beach ,
3509-438: Is the state's largest metropolitan area , with a population of 6.138 million; the most populous city is Jacksonville . Florida's other major population centers include Tampa Bay , Orlando , Cape Coral , and the state capital of Tallahassee . Various American Indian tribes have inhabited Florida for at least 14,000 years. In 1513, Spanish explorer Juan Ponce de León became the first known European to make landfall, calling
3630-620: The American alligator , American crocodile , American flamingo , Roseate spoonbill , Florida panther , bottlenose dolphin , and manatee . The Florida Reef is the only living coral barrier reef in the continental United States, and the third-largest coral barrier reef system in the world, after the Great Barrier Reef and the Belize Barrier Reef . Paleo-Indians entered Florida at least 14,000 years ago. By
3751-664: The Black Lives Matter movement. After Hurricane Maria devastated Puerto Rico in September 2017, a large population of Puerto Ricans began moving to Florida to escape the widespread destruction. Hundreds of thousands of Puerto Ricans arrived in Florida after Maria dissipated, with nearly half of them arriving in Orlando and large populations also moving to Tampa, Fort Lauderdale, and West Palm Beach. A handful of high-profile mass shootings have occurred in Florida in
Pioneer Venus Orbiter - Misplaced Pages Continue
3872-586: The Civil War on June 25, 1868. Since the mid-20th century, Florida has experienced rapid demographic and economic growth. Its economy , with a gross state product (GSP) of $ 1.647 trillion, is the fourth largest of any U.S. state and the 15th-largest in the world; the main sectors are tourism , hospitality , agriculture , real estate, and transportation . Florida is world-renowned for its beach resorts , amusement parks , warm and sunny climate, and nautical recreation; attractions such as Walt Disney World ,
3993-620: The First Seminole War . The United States now effectively controlled East Florida. Control was necessary according to Secretary of State John Quincy Adams because Florida had become "a derelict open to the occupancy of every enemy, civilized or savage, of the United States, and serving no other earthly purpose than as a post of annoyance to them." More recent historians describe that after U.S. independence, settlers in Georgia increased pressure on Seminole lands, and skirmishes near
4114-461: The Government of Florida . The marriage between Luisa de Abrego, a free black domestic servant from Seville, and Miguel Rodríguez, a white Segovian, occurred in 1565 in St. Augustine. It is the first recorded Christian marriage in the continental United States. Some Floridanos married or had unions with Pensacola , Creek , or African women, both slave and free, and their descendants created
4235-580: The Hyatt Regency walkway collapse and the collapse of the Pemberton Mill . Much of Florida is on a peninsula between the Gulf of Mexico, the Atlantic Ocean and the Straits of Florida . Spanning two time zones , it extends to the northwest into a panhandle , extending along the northern Gulf of Mexico. It is bordered on the north by Georgia and Alabama , and on the west, at the end of
4356-680: The Kennedy Space Center , and Miami Beach draw tens of millions of visitors annually. Florida is a popular destination for retirees , seasonal vacationers , and both domestic and international migrants; it hosts nine out of the ten fastest-growing communities in the U.S. The state's close proximity to the ocean has shaped its culture , identity, and daily life; its colonial history and successive waves of migration are reflected in African , European , Indigenous , Latino , and Asian influences. Florida has attracted or inspired some of
4477-579: The King's Road connecting St. Augustine to Georgia . The road crossed the St. Johns River at a narrow point called Wacca Pilatka , now the core of Downtown Jacksonville , and formerly referred to by the British name "Cow Ford", reflecting the fact that cattle were brought across the river there. The British divided and consolidated the Florida provinces ( Las Floridas ) into East Florida and West Florida ,
4598-635: The Kingdom of Great Britain for control of Havana , Cuba , which had been captured by the British during the Seven Years' War . The trade was done as part of the 1763 Treaty of Paris which ended the Seven Years' War. Spain was granted Louisiana from France due to their loss of Florida. A large portion of the Florida population left, taking along large portions of the remaining Indigenous population with them to Cuba. The British soon constructed
4719-482: The Range Safety Officer (RSO) sent the destruct command at T+413 seconds. Investigation showed that the lanyard was not only inadequately designed, but it also was an off-the-shelf component designed for marine equipment and not rockets or aircraft. The lanyard had been noted as a potential problem as early as 1967 and although fixes were made to some Atlas SLVs as well as Atlas E/F series missiles, there
4840-589: The Seaboard Air Line broke the FEC's southeast Florida monopoly and extended its freight and passenger service to West Palm Beach; two years later it extended passenger service to Miami. Devastating hurricanes in 1926 and 1928 , followed by the Great Depression , brought that period to a halt. Florida's economy did not fully recover until the military buildup for World War II . In 1939, Florida
4961-638: The Second Seminole War (1835–1842). Following the war, approximately 3,000 Seminole and 800 Black Seminole were removed to Indian Territory . A few hundred Seminole remained in Florida in the Everglades . On March 3, 1845, only one day before the end of President John Tyler 's term in office, Florida became the 27th state, admitted as a slave state and no longer a sanctuary for runaway slaves. Initially its population grew slowly. As European settlers continued to encroach on Seminole lands,
Pioneer Venus Orbiter - Misplaced Pages Continue
5082-513: The Surveyor program was delayed. Vehicles AC-7 and AC-10 were designated for the first Surveyor missions, with AC-8 to carry out one more test, which took place on 8 April 1966 at 01:00:02 GMT with a payload of 771 kg Surveyor mass model M-1. The Centaur's ullage motors failed again because they did not have enough propellant for the mission. It decayed on 5 May 1966. Seven Surveyor probes were launched, all on Atlas-Centaur. Beginning with AC-13 ( Surveyor 5 ), Atlas-Centaur vehicles switched to
5203-598: The Third Seminole War (1855–1858), having taken refuge in the Everglades, from where they never surrendered to the US. They fostered a resurgence in traditional customs and a culture of staunch independence. Florida had become a burden to Spain, which could not afford to send settlers or troops due to the devastation caused by the Peninsular War . Madrid, therefore, decided to cede the territory to
5324-539: The Titan family for its heavy-lift launching needs and so the Atlas-Centaur would remain a civilian launch vehicle used by NASA to fly scientific and commercial payloads. A conflict between the Air Force, who had primary oversight of the Atlas, and NASA also existed as the Centaur stage required various modifications to the basic Atlas. By 1962, the Air Force had considered the Atlas fully developed and operational and
5445-560: The Treaty of Payne's Landing (1832), which called for the relocation of all Seminole to Indian Territory (now Oklahoma ). Some resisted, leading to the Second Seminole War , the bloodiest war against Native Americans in United States history. By 1842, most Seminoles and Black Seminoles, facing starvation, were removed to Indian Territory west of the Mississippi River . Perhaps fewer than 200 Seminoles remained in Florida after
5566-647: The United States . It borders the Gulf of Mexico to the west, Alabama to the northwest, Georgia to the north, the Atlantic Ocean to the east, and the Straits of Florida and Cuba to the south. About two-thirds of Florida occupies a peninsula between the Gulf of Mexico and the Atlantic Ocean . It has the longest coastline in the contiguous United States , spanning approximately 1,350 miles (2,170 km), not including its many barrier islands . It
5687-873: The 16th century, the earliest time for which there is a historical record, major groups of people living in Florida included the Apalachee of the Florida Panhandle , the Timucua of northern and central Florida, the Ais of the central Atlantic coast, the Mayaimi of the Lake Okeechobee area, the Tequesta of southeastern Florida, and the Calusa of southwest Florida. Florida was the first region of what
5808-498: The 21st century. In June 2016, a gunman killed 49 people at a gay nightclub in Orlando . It is the deadliest incident in the history of violence against LGBT people in the United States , as well as the deadliest terrorist attack in the U.S. since the September 11 attacks in 2001, and it was the deadliest mass shooting by a single gunman in U.S. history until the 2017 Las Vegas shooting . In February 2018, 17 people were killed in
5929-440: The Atlas's booster engines shut down after a few feet of vehicle rise and the rocket fell back onto LC-36A and exploded, the Centaur's LH2 load going off in a huge fireball for the biggest on-pad explosion yet seen at Cape Canaveral. This was also the first Atlas-Centaur equipped with the uprated 165,000 lb (75,000 kg) thrust MA-5 booster engines after the previous testing on two Atlas-Agena flights. The damage to LC-36A
6050-467: The Castilian language, and more to Florida. Spain established several settlements in Florida, with varying degrees of success. In 1559, Don Tristán de Luna y Arellano established a settlement at present-day Pensacola , making it one of the first settlements in Florida, but it was mostly abandoned by 1561. In 1564–1565, there was a French settlement at Fort Caroline , in present Duval County , which
6171-455: The Centaur experienced total structural breakup and loss of telemetry, the LOX tank rupturing and producing an explosion as it mixed with the hydrogen cloud. Two seconds later, flying debris ruptured the Atlas's LOX tank followed by complete destruction of the launch vehicle. The panel had been meant to jettison at 49 miles (80 km) up when the air was thinner, but the mechanism holding it in place
SECTION 50
#17327794800826292-568: The Centaur program "weak", and Wernher von Braun recommended that it be cancelled in favor of a Saturn I with an Agena upper stage for planetary missions. In addition, the production Centaur stage had less lift capacity than originally planned, leading to ARPA cancelling Project ADVENT. NASA transferred Centaur development from MSFC to the Lewis Research Center in Ohio where a team headed by Abe Silverstein worked to correct
6413-587: The Floridas, and in the meantime they were, with the advice of councils, to establish courts. This was the first introduction of the English-derived legal system which Florida still has today, including trial by jury , habeas corpus and county-based government. Neither East Florida nor West Florida sent any representatives to Philadelphia to draft the Declaration of Independence . Florida remained
6534-680: The Indians from Florida. Seminoles offered sanctuary to blacks, and these became known as the Black Seminoles , and clashes between whites and Indians grew with the influx of new settlers. In 1832, the Treaty of Payne's Landing promised to the Seminoles lands west of the Mississippi River if they agreed to leave Florida. Many Seminoles left at this time. Some Seminoles remained, and the U.S. Army arrived in Florida, leading to
6655-749: The Indians. Most non-Indian residents were soldiers stationed at Fort Dallas . It was the most devastating Indian war in American history, causing almost a total loss of population in Miami. After the Second Seminole War ended in 1842, William English re-established a plantation started by his uncle on the Miami River . He charted the "Village of Miami" on the south bank of the Miami River and sold several plots of land. In 1844, Miami became
6776-462: The Mobile District of West Florida to the Mississippi Territory in 1812. Spain continued to dispute the area, though the United States gradually increased the area it occupied. In 1812, a group of settlers from Georgia, with de facto support from the U.S. federal government, attempted to overthrow the Floridan government in the province of East Florida. The settlers hoped to convince Floridians to join their cause and proclaim independence from Spain, but
6897-549: The Pioneer Venus Orbiter was based on the HS-507 bus . The spacecraft was a flat cylinder, 2.5 meters (8.2 ft) in diameter and 1.2 meters (3.9 ft) long. All instruments and spacecraft subsystems were mounted on the forward end of the cylinder, except the magnetometer , which was at the end of a 4.7 meters (15 ft) boom. A solar array extended around the circumference of the cylinder. A 1.09 metres (3 ft 7 in) despun dish antenna provided S and X band communication with Earth . A Star 24 solid rocket motor
7018-471: The Range Safety Officer a few seconds later. NASA and U.S. Air Force officials, already busy investigating the launch failure of a Delta booster three weeks earlier (OTS-1), dredged the Atlas's engines from the ocean floor and sent them to Convair for examination. It was concluded that a gas generator leak caused by improper brazing of a pipe led to overheating and fire in the thrust section of the Atlas. The pipe also suffered corrosion from six years of sitting in
7139-416: The United States intervened to move the remaining Seminoles to the West. The Third Seminole War (1855–1858) resulted in the forced removal of most of the remaining Seminoles, although hundreds of Seminole Indians remained in the Everglades. The first settlements and towns in South Florida were founded much later than those in the northern part of the state. The first permanent European settlers arrived in
7260-402: The United States through the Adams–Onís Treaty , which took effect in 1821. President James Monroe was authorized on March 3, 1821, to take possession of East Florida and West Florida for the United States and provide for initial governance. On behalf of the U.S. government, Andrew Jackson , whom Jacksonville is named after, served as a military commissioner with the powers of governor of
7381-702: The United States, including Surveyor 1 , and Pioneer 10 / 11 . The vehicle would be continuously developed and improved into the 1990s, with the last direct descendant being the highly successful Atlas II . Convair , the manufacturer of the Atlas, developed the Centaur upper stage specifically for that booster, sharing its pressure-stabilized tank structure. Centaur was the first rocket stage to utilize liquid hydrogen (LH2) and liquid oxygen (LOX) as propellants. Despite boasting high performance, LH2 had to be chilled to extremely low temperatures (lower than LOX) and its low density meant that large fuel tanks were needed. The first attempt at using an LH2/LOX-fueled engine
SECTION 60
#17327794800827502-508: The already present British settlers who had remained in Florida since the British period, would be the progenitors of the population known as Florida Crackers . These American settlers established a permanent foothold in the area. The British settlers who had remained also resented Spanish governance, leading to a rebellion in 1810 and the establishment for ninety days of the so-called Free and Independent Republic of West Florida on September 23. After meetings beginning in June, rebels overcame
7623-435: The booster ascended. A visible thrust section fire could be seen starting at T+33 seconds and sustainer thrust vector control hydraulic pressure was lost at T+55 seconds, causing total loss of vehicle control. The payload fairing and satellite were stripped from the booster, followed by the Atlas exploding as the thrust section fire touched off the propellant tanks at T+60 seconds. The Centaur flew free until being destructed by
7744-440: The booster fuel prevalves. The low-pressure booster fuel ducting was found to have collapsed from a sudden loss of fuel flow, but had not ruptured. The investigation concluded that the fuel prevalves had only opened partially and the propellant flow was enough to push them shut, starving the booster engines of RP-1 and causing a LOX -rich shutdown. Engine start had proceeded normally and all booster systems functioned properly until
7865-402: The border dispute along the Sabine River in Spanish Texas . Florida was admitted as the 27th state on March 3, 1845, and was the principal location of the Seminole Wars (1816–1858), the longest and most extensive of the American Indian Wars . The state seceded from the Union on January 10, 1861, becoming one of the seven original Confederate States , and was readmitted to the Union after
7986-405: The border led to the First Seminole War (1816–1819). The United States purchased Florida from Spain by the Adams-Onis Treaty (1819) and took possession in 1821. The Seminole were moved out of their rich farmland in northern Florida and confined to a large reservation in the interior of the Florida peninsula by the Treaty of Moultrie Creek (1823). Passage of the Indian Removal Act (1830) led to
8107-648: The comet's nucleus at perihelion on February 9. The extended mission allowed the spacecraft controllers to make several comet observations that were never part of the original mission objectives. The tilt of the spacecraft was altered during these comet observations so that the Ultraviolet Spectrometer (OUVS) could view the comets rather than Venus. Comets Encke (April 13–16, 1984), Giacobini-Zinner (September 8–15, 1985), Halley (December 27, 1985 - March 9, 1986), Wilson (March 13 - May 2, 1987), NTT (April 8, 1987), and McNaught (November 19–24, 1987) were all observed in this way. Atlas-Centaur The Atlas-Centaur
8228-444: The computer in order to reduce system complexity and failure points. The failure of AC-5 resulted in another Congressional investigation, again headed by Rep. Joseph Karth , who argued that $ 600 million of taxpayer money had been spent on Centaur so far with little to show for it and that Convair was taking advantage of being the sole supplier of the Atlas-Centaur vehicle. The committee proposed that NASA consider alternate choices for
8349-419: The county seat, and six years later a census reported there were ninety-six residents in the area. The Third Seminole War was not as destructive as the second, but it slowed the settlement of southeast Florida. At the end of the war, a few of the soldiers stayed. American settlers began to establish cotton plantations in north Florida, which required numerous laborers, which they supplied by buying slaves in
8470-472: The defense of the Captaincy General of Cuba and the Spanish West Indies . In 1738, the governor of Florida Manuel de Montiano established Fort Gracia Real de Santa Teresa de Mose near St. Augustine, a fortified town for escaped slaves to whom Montiano granted citizenship and freedom in return for their service in the Florida militia, and which became the first free black settlement legally sanctioned in North America. In 1763 , Spain traded Florida to
8591-463: The domestic market. By 1860, Florida had only 140,424 people, of whom 44% were enslaved. There were fewer than 1,000 free African Americans before the American Civil War. On January 10, 1861, nearly all delegates in the Florida Legislature approved an ordinance of secession, declaring Florida to be "a sovereign and independent nation"—an apparent reassertion to the preamble in Florida's Constitution of 1838, in which Florida agreed with Congress to be
8712-618: The early 19th century. People came from the Bahamas to South Florida and the Keys to hunt for treasure from the ships that ran aground on the treacherous Great Florida Reef . Some accepted Spanish land offers along the Miami River. At about the same time, the Seminole Indians arrived, along with a group of runaway slaves. The area was affected by the Second Seminole War , during which Major William S. Harney led several raids against
8833-477: The establishment of English settlements to the north and French claims to the west. English colonists and buccaneers launched several attacks on St. Augustine in the 17th and 18th centuries, razing the city and its cathedral to the ground several times. Spain built the Castillo de San Marcos in 1672 and Fort Matanzas in 1742 to defend Florida's capital city from attacks, and to maintain its strategic position in
8954-517: The federal government used the facility to process, document and provide medical and dental services for the newcomers. As a result, the Freedom Tower was also called the "Ellis Island of the South". In recent decades, more migrants have come for the jobs in a developing economy. With a population of more than 18 million, according to the 2010 census, Florida is the most populous state in
9075-533: The first global topographic map of the Venusian surface to be constructed. The instruments can also be classified by what they are meant to measure or analyze: From its orbit of Venus, the Pioneer Venus Orbiter was able to observe Halley's Comet when it was unobservable from Earth due to its proximity to the sun during February 1986. UV spectrometer observations monitored the loss of water from
9196-567: The garrison at Baton Rouge (now in Louisiana ) and unfurled the flag of the new republic: a single white star on a blue field. This flag would later become known as the " Bonnie Blue Flag ". In 1810, parts of West Florida were annexed by the proclamation of President James Madison , who claimed the region as part of the Louisiana Purchase . These parts were incorporated into the newly formed Territory of Orleans . The U.S. annexed
9317-531: The insulation panel problems and various other design flaws. In November 1962, President Kennedy suggested cancelling Centaur entirely, but was talked out of it on the grounds that the experience gained with liquid hydrogen rocket engines was vital to the success of the Apollo program . In addition, von Braun now proposed the Saturn-Agena be ruled out for cost reasons – Saturn was too expensive to justify as
9438-423: The interior of the state. Florida's economy has been based primarily upon agricultural products such as citrus fruits, strawberries, nuts, sugarcane and cattle. The boll weevil devastated cotton crops during the early 20th century. Until the mid-20th century, Florida was the least-populous state in the southern United States . In 1900, its population was only 528,542, of whom nearly 44% were African American,
9559-404: The intermediate bulkhead separating the propellant tanks combined with numerous lesser maladies with the guidance and propulsion systems. The vehicle was launched at 2:49 PM EST (18:49 GMT ) on 8 May 1962, with the intention of performing a single burn with a partially fueled Centaur. Slightly under a minute into the launch, the Centaur stage ruptured and disintegrated, taking the Atlas with it in
9680-500: The lake (including the Florida Keys ) have a true tropical climate (Köppen: Aw , Am , and Af ). Mean high temperatures for late July are primarily in the low 90s Fahrenheit (32–34 °C). Mean low temperatures for early to mid-January range from the low 40s Fahrenheit (4–7 °C) in north Florida to above 60 °F (16 °C) from Miami on southward. With an average daily temperature of 70.7 °F (21.5 °C), it
9801-483: The last Atlas III (Centaur), AC-206, launched on 3 February 2005. The Rocketdyne -powered Atlas-Centaur was sometimes referred to as a 2 + 1 ⁄ 2 stage launch vehicle because the Atlas first stage (in most cases) jettisoned the twin-thrust-chamber booster engine prior to the completion of the first stage burn. Atlas-Centaur with a Rocketdyne-powered first stage was used for 167 launches between 1962 and 2004 by which time they had been superseded by Atlas V with
9922-482: The launch films quickly confirmed the Centaur as the source of trouble. The failure was determined to be caused by an insulation panel that ripped off the Centaur during ascent, resulting in a surge in tank pressure when the LH2 overheated. Beginning at T+44 seconds, the pneumatic system responded by venting propellant to reduce pressure levels, but eventually, they exceeded the LH2 tank's structural strength. At T+54 seconds,
10043-417: The most prominent American writers, including Ernest Hemingway , Marjorie Kinnan Rawlings , and Tennessee Williams , and continues to attract celebrities and athletes, especially in golf , tennis , auto racing , and water sports . Florida has been considered a battleground state in American presidential elections , particularly those in 2000 and 2016 . Florida's climate varies from subtropical in
10164-553: The newly acquired territory for a brief period. On March 30, 1822, the U.S. Congress merged East Florida and part of West Florida into the Florida Territory . By the early 1800s, Indian removal was a significant issue throughout the southeastern U.S. and also in Florida. In 1830, the U.S. Congress passed the Indian Removal Act and as settlement increased, pressure grew on the U.S. government to remove
10285-473: The north to tropical in the south. It is the only state besides Hawaii to have a tropical climate , and the only continental state with both a tropical climate, located at the southern portion of the state, and a coral reef . Florida has several unique ecosystems, including Everglades National Park , the largest tropical wilderness in the U.S. and among the largest in the Americas . Unique wildlife include
10406-467: The panhandle, by Alabama. It is the only state that borders both the Atlantic Ocean and the Gulf of Mexico. Florida also is the southernmost of the 48 contiguous states, Hawaii being the only one of the fifty states reaching farther south. Florida is west of the Bahamas and 90 miles (140 km) north of Cuba . Florida is one of the largest states east of the Mississippi River , and only Alaska and Michigan are larger in water area. The water boundary
10527-450: The planetary probe program, such as Titan IIIC , or outsource the manufacture of Centaur to other contractors. NASA representatives argued that this was impossible as no other aerospace company had the experience or technical capability to manufacture the Centaur's balloon tanks. The pad LC-36B was hastily brought online, with a successful AC-6 (vehicle 151D) launched on 11 August 1965 at 14:31:04 GMT. Although Centaur appeared flight-ready,
10648-781: The pre-automobile era, railroads played a key role in the state's development, particularly in coastal areas. In 1883, the Pensacola and Atlantic Railroad connected Pensacola and the rest of the Panhandle to the rest of the state. In 1884 the South Florida Railroad (later absorbed by Atlantic Coast Line Railroad ) opened full service to Tampa . In 1894 the Florida East Coast Railway reached West Palm Beach ; in 1896 it reached Biscayne Bay near Miami . Numerous other railroads were built all over
10769-508: The project to take far longer than intended. Under original timetables, Centaur was to make its first flight in January 1961. In October 1961, the first Atlas-Centaur (Vehicle Flight-1: Atlas 104D and Centaur F-1) arrived at Cape Canaveral and was erected at the newly completed and specifically built LC-36A. Technical problems caused the vehicle to sit on the launch pad for seven months, the most serious being leakage of liquid hydrogen through
10890-405: The region La Florida (land of flowers) ( [la floˈɾiða] ). Florida subsequently became the first area in the continental U.S. to be permanently settled by Europeans, with the settlement of St. Augustine , founded in 1565, being the oldest continuously inhabited city. Florida was frequently attacked and coveted by Great Britain before Spain ceded it to the U.S. in 1819 in exchange for resolving
11011-499: The risk posed by ice, the NASA program directors gave the go-ahead. The Atlas was struck by lightning around 48 seconds into launch. Control of the booster started to fail and it broke apart from structural loads at T+50 seconds. The Range Safety Officer sent the destruct command, but there was no evidence that the booster ever received it. Debris rained out of the clouds onto the pad area, the shoreline, or in shallow water just off of it and
11132-830: The same proportion as before the Civil War. Forty thousand blacks, roughly one-fifth of their 1900 population levels in Florida, left the state in the Great Migration . They left due to lynchings and racial violence and for better opportunities in the North and the West. Disfranchisement for most African Americans in the state persisted until the Civil Rights Movement of the 1960s gained federal legislation in 1965 to enforce protection of their constitutional suffrage. In response to racial segregation in Florida,
11253-569: The settlers lost their tenuous support from the federal government and abandoned their cause by 1813. Traditionally, historians argued that Seminoles based in East Florida began raiding Georgia settlements and offering havens for runaway slaves. The United States Army led increasingly frequent incursions into Spanish territory, including the 1817–1818 campaign against the Seminole Indians by Andrew Jackson that became known as
11374-617: The southeastern United States and the third-most populous in the United States. The population of Florida has boomed in recent years with the state being the recipient of the largest number of out-of-state movers in the country as of 2019. Florida's growth has been widespread, as cities throughout the state have continued to see population growth. In 2012, the killing of Trayvon Martin , a young black man, by George Zimmerman in Sanford drew national attention to Florida's stand-your-ground laws , and sparked African American activism, including
11495-467: The spacecraft's propellant was exhausted, after which the orbit decayed naturally. The spacecraft continued to return data until 8 October 1992, with the last signals being received at 19:22 UTC. The Pioneer Venus Orbiter disintegrated upon entering the atmosphere of Venus on October 22, 1992. The Pioneer Venus Orbiter carried 17 experiments with a total mass of 45 kilograms (99 lb): The spacecraft conducted radar altimetry observations allowing
11616-519: The stage as the jettison problem had still not been solved. Vibration data proved that the panels would have prematurely detached had they not been bolted down. The ultimate fix to the panel problem added more dry mass to Centaur, further dropping its payload capacity. This Atlas-Centaur 2 launch vehicle was used for performance and structural integrity tests. It carried a payload of 4621 kg and instrumented with 907 kg of sensors, equipment, and telemetry. The AC-3 flight (Atlas 135D and Centaur #3)
11737-692: The standardized SLV-3 Atlas core. Initially, a modified Atlas D designated LV-3C was used as the first stage. This was quickly replaced by SLV-3C, and later the SLV-3D, both derived from the standard Atlas SLV-3 rocket. Two spaceflights, with the Pioneer 10 and Pioneer 11 space probes to Jupiter , Saturn and exiting the Solar System , used a spin-stabilized " Star-37E " solid propellant final stage weighing 2,473 pounds (1,122 kg) and contributing 8,000 mph (13,000 km/h; 3.6 km/s) to
11858-506: The state is at or near sea level. Some places, such as Clearwater have promontories that rise 50 to 100 ft (15 to 30 m) above the water. Much of Central and North Florida, typically 25 mi (40 km) or more away from the coastline, have rolling hills with elevations ranging from 100 to 250 ft (30 to 76 m). The highest point in peninsular Florida (east and south of the Suwannee River ), Sugarloaf Mountain ,
11979-413: The unproven Atlas-Centaur combination, and indeed there had been several previous occurrences of these failure modes on Atlas launches. Scott Carpenter 's Mercury flight was only days away, and if the failure were caused by the Atlas, it could mean significant delays for that mission, which used a similar Atlas D derived Atlas LV-3B booster. However, analysis of telemetry data and closer examination of
12100-429: The valve closed. Booster shutdown occurred at T+1.7 seconds and the vehicle impacted on the pad at T+2.8 seconds. Bench testing confirmed that there were several possible ways that the valve would only open partially, although the exact reason was not determined. This failure mode had never occurred in the 240 Atlas launches prior to AC-5 despite always having been possible. Until a more permanent solution could be found,
12221-483: The vehicle to tumble out of control. After ten orbits, the Centaur reentered over the South Pacific , on 12 December 1964. The AC-5 flight (Atlas 156D) on 2 March 1965 at 13:25 GMT from Cape Kennedy in a highly elliptical orbit, with a payload (Surveyor SD-1) of 951 kg, was only intended to carry out a single burn of the Centaur C, and program officials felt confident. This mission was designed to rehearse
12342-761: The velocities of the spacecraft. With the retirement of the Agena stage in 1978, all Atlas flown from that point onward were paired with Centaurs except for a few military flights involving decommissioned Atlas E/F missiles. Originally designed and built by the Convair Division of General Dynamics in San Diego , California , production of Atlas-Centaur at Convair ended in 1995 but was resumed at Lockheed Martin in Colorado . The list of Atlas-Centaur ID numbers began with AC-1 launched on 8 May 1962 and ended with
12463-489: Was a United States expendable launch vehicle derived from the SM-65 Atlas D missile. The vehicle featured a Centaur upper stage, the first such stage to use high-performance liquid hydrogen as fuel. Launches were conducted from Launch Complex 36 at the Cape Canaveral Air Force Station (CCAFS) in Florida . After a strenuous flight test program, Atlas-Centaur went on to launch several crucial spaceflight missions for
12584-559: Was able to compensate for a time, but the Centaur eventually lost control and began tumbling. Premature engine shutdown due to propellant starvation occurred at T+496 seconds, and the Centaur impacted in the South Atlantic . Postflight investigation traced the malfunction to a failure of the Centaur-2 engine hydraulic gimbal actuator. The AC-4 flight (Atlas 146D and Centaur #4) was launched on 11 December 1964 at 14:25:02 GMT with
12705-520: Was against any further significant changes to it which might potentially jeopardize the ICBM program. The dispute was ultimately resolved by NASA agreeing to purchase standard Atlas D vehicles which could be custom-modified for Centaur launches. However, when the Atlas ICBM program ended in 1965, Convair replaced all of the earlier variants with a standardized booster for all space launches. More than
12826-500: Was allowed to rise to a maximum of 2,290 kilometres (1,420 mi) and then fall, to conserve fuel. In 1991, the Radar Mapper was reactivated to investigate previously inaccessible southern portions of the planet, in conjunction with the recently arrived Magellan spacecraft. In May 1992, Pioneer Venus began the final phase of its mission, in which the periapsis was held between 150 and 250 kilometres (93 and 155 mi), until
12947-464: Was also a group of settlers who came from the colony of Bermuda . This was the first permanent English-speaking population in what is now Duval County , Baker County , St. Johns County and Nassau County . The British constructed good public roads and introduced the cultivation of sugar cane, indigo and fruits, as well as the export of lumber. The British governors were directed to call general assemblies as soon as possible in order to make laws for
13068-586: Was described as "still very largely an empty State." Subsequently, the growing availability of air conditioning , the climate, and a low cost of living made the state a haven. Migration from the Rust Belt and the Northeast sharply increased Florida's population after 1945. In the 1960s, many refugees from Cuba , fleeing Fidel Castro 's communist regime, arrived in Miami at the Freedom Tower , where
13189-465: Was designed inadequately, leading to premature separation. The insulation panels had already been suspected during Centaur development of being a potential problem area, and the possibility of an LH2 tank rupture was considered as a failure scenario. Testing was suspended while efforts were made to correct the Centaur's design flaws. A Congressional investigation in June 1962 called the overall management of
13310-481: Was destroyed by the Spanish. Today a reconstructed version of the fort stands in its location within Jacksonville. In 1565, the settlement of St. Augustine (San Agustín) was established under the leadership of admiral and governor Pedro Menéndez de Avilés , creating what would become the oldest, continuously occupied European settlements in the continental U.S. and establishing the first generation of Floridanos and
13431-475: Was done for time and budget reasons and because it allowed the Centaur to be manufactured on the existing Atlas assembly line at Convair. The engines were manufactured by Pratt & Whitney . Originally under ARPA supervision, Centaur was transferred to NASA in July 1959, eleven months after the program's inception. The Air Force retained overall supervision in part because they intended to use Centaur to launch
13552-414: Was easily recovered. A section of the payload fairing was found to have multiple small holes burned in it due to repeated lightning strikes. The key piece of evidence was Atlas's flight computer, which was recovered intact and examined. It was discovered that the last command issued was a signal to gimbal the booster engines hard to right, caused apparently by lightning induced electromagnetic pulse altering
13673-404: Was integrated into the spacecraft to provide the thrust to enter orbit around Venus. From Venus orbit insertion to July 1980, periapsis was held between 142 and 253 kilometres (88 and 157 mi) (at 17 degrees north latitude) to facilitate radar and ionospheric measurements. The spacecraft was in a 24-hour orbit with an apoapsis of 66,900 kilometers (41,600 mi). Thereafter, the periapsis
13794-440: Was launched on 30 June 1964 at 14:04:22 GMT with a payload of 4815 kg. Atlas performance was close to nominal with the sustainer running slightly LOX-rich for the first 70 seconds of flight and the trajectory being more lofted than expected. Insulation panel and payload shroud jettisons were tested for the first time. Following Centaur staging and engine start, the number two (C-2) engine began to lose roll control. The C-1 engine
13915-477: Was no across-the-board effort to replace them with a more suitable component. The backup Intelsat ( Intelsat IV F-1 ) was launched successfully on AC-35 in May 1975. Two years later, on 29 September 1977, another attempted launch of an Intelsat ( Intelsat IVA F-5 ) communications satellite took place on AC-43. Shortly after liftoff, abnormal temperatures were detected in the Atlas's thrust section and continued to rise as
14036-430: Was not as severe as it looked and repairs were largely completed in three months, but the completion of LC-36B was also accelerated. Most damages were thermal rather than structural, and the upper portion of the umbilical tower, which was in the center of the LH2 blast, had been subjected to temperatures of 3315 °C. The accident marked the first failure of an Atlas booster in a space launch since Midas 8 in June 1963,
14157-595: Was particularly important after 1864, when the Confederacy lost control of the Mississippi River, thereby losing access to Texas beef. The largest engagements in the state were the Battle of Olustee , on February 20, 1864, and the Battle of Natural Bridge , on March 6, 1865. Both were Confederate victories. The war ended in 1865. Following the American Civil War, Florida's congressional representation
14278-489: Was restored on June 25, 1868, albeit forcefully after Reconstruction and the installation of unelected government officials under the final authority of federal military commanders. After the Reconstruction period ended in 1876, white Democrats regained power in the state legislature. In 1885, they created a new constitution, followed by statutes through 1889 that disfranchised most blacks and many poor whites. In
14399-486: Was searching for the Fountain of Youth is mythical and appeared only long after his death. In May 1539, Hernando de Soto skirted the coast of Florida, searching for a deep harbor to land. He described a thick wall of red mangroves spread mile after mile, some reaching as high as 70 feet (21 m), with intertwined and elevated roots making landing difficult. Europeans introduced Christianity , cattle, horses, sheep,
14520-444: Was sighted by recovery crews but sank into the ocean and could not be located. The Atlas phase of the flight and the initial phase of Centaur flight were uneventful. The mission went awry when the Centaur could not be restarted due to an ill-conceived design modification — the ullage rockets were reduced in size to save weight, however, they proved insufficient to settle the propellants in the tanks. Subsequently, venting hydrogen caused
14641-460: Was the U.S. Air Force 's top-secret Lockheed CL-400 Suntan reconnaissance aircraft program in the mid-1950s. The progress made during the aborted venture was picked up by Convair and others for rocket stage use. Originally, Centaur was conceived of as a purely experimental project to develop an experience for larger, more powerful rocket stages so as not to distract Convair's focus on the all-important SM-65 Atlas missile program. Convair developed
#81918