Names | Space Transportation System-15 |
---|---|
Mission type | DoD satellite deployment |
Operator | NASA |
COSPAR ID | 1985-010A |
SATCAT no. | 15496 |
Mission duration | 3 days, 1 hour, 33 minutes, 23 seconds |
Distance travelled | 2,010,000 km (1,250,000 mi) |
Orbits completed | 49 |
Spacecraft properties | |
Spacecraft | Space Shuttle Discovery |
Launch mass | 113,802 kg (250,890 lb) |
Landing mass | (Classified) |
Payload mass | (Classified) |
Crew | |
Crew size | 5 |
Members | |
Start of mission | |
Launch date | January 24, 1985, 19:50:00 UTC (2:50 pm EST) |
Launch site | Kennedy, LC-39A |
Contractor | Rockwell International |
End of mission | |
Landing date | January 27, 1985, 21:23:23 UTC (4:23:23 am EST) |
Landing site | Kennedy, SLF Runway 15 |
Orbital parameters | |
Reference system | Geocentric orbit [1] |
Regime | Low Earth orbit |
Perigee altitude | 332 km (206 mi) |
Apogee altitude | 341 km (212 mi) |
Inclination | 28.45° |
Period | 91.30 minutes |
STS-51-C mission patch Back row: Payton, Buchli and Onizuka Front row: Shriver and Mattingly |
STS-51-C (formerly STS-10) was the 15th flight of NASA's Space Shuttle program, and the third flight of Space Shuttle Discovery. It launched on January 24, 1985, and made the fourth shuttle landing at the Shuttle Landing Facility at the Kennedy Space Center in Florida on January 27, 1985. STS-51-C was the first shuttle mission dedicated to the United States Department of Defense (DoD), and consequently many details remain classified. NASA reported that a satellite (USA-8) was deployed during the mission using an Inertial Upper Stage booster was deployed and met mission objectives. At just over three days, the mission was shorter in duration than most civilian missions and was the shortest of Discovery's career.
Position | Astronaut | |
---|---|---|
Commander | Ken Mattingly Third and last spaceflight | |
Pilot | Loren Shriver First spaceflight | |
Mission Specialist 1 | Ellison Onizuka Only spaceflight | |
Mission Specialist 2 Flight Engineer | James Buchli First spaceflight | |
Payload Specialist 1 | Gary Payton, MSE Only spaceflight |
Position | Astronaut | |
---|---|---|
Payload Specialist 1 | Keith Wright, MSE |
Seat [2] | Launch | Landing | Seats 1–4 are on the flight deck. Seats 5–7 are on the mid-deck. |
---|---|---|---|
1 | Mattingly | ||
2 | Shriver | ||
3 | Onizuka | ||
4 | Buchli | ||
5 | Payton | ||
6 | Unused | ||
7 | Unused |
STS-51-C launched from Kennedy Space Center (KSC) on January 24, 1985, at 19:50:00 UTC, and was the first of nine shuttle missions in 1985. It was originally scheduled for January 23, 1985, but was delayed because of freezing weather. Challenger had been scheduled for this flight, but Discovery was substituted when problems were encountered with Challenger's thermal protection tiles. STS-51-C marked the 100th human spaceflight to achieve orbit.
The mission's length of three days was shorter than the week or longer of most civilian shuttle flights. It was the first dedicated to the U.S. Department of Defense (DoD), [3] and most information about it remains classified. For the first time, NASA did not provide pre-launch commentary to the public until nine minutes before liftoff. The U.S. Air Force only stated that the shuttle successfully launched its payload with an Inertial Upper Stage (IUS) on the mission's seventh orbit. It is believed that the payload was a Magnum SIGINT satellite into geosynchronous orbit. [4] Other DoD flights STS-33 and STS-38 could have carried similar payloads. Payton stated in 2009 that STS-51-C's payload is "still up there, and still operating". [5] Payton was a USAF Manned Spaceflight Engineer (MSE); the USAF declined a NASA offer to fly another MSE on the mission. [6]
Also, according to Aviation Week, the shuttle initially entered a 204 × 519 km (127 × 322 mi) orbit, at an inclination of 28.45° to the equator. It then executed three Orbital Maneuvering System (OMS) burns, the last being executed on the fourth orbit. The first burn was conducted to circularize the shuttle's orbit at 519 km (322 mi).
The mission lasted 3 days, 1 hour, 33 minutes, and 23 seconds. Discovery touched down on SLF Runway 15 at KSC on January 27, 1985, at 21:23:23 UTC. IMAX footage of the STS-51-C launch was used in the 1985 movie The Dream is Alive .
The crew insignia for STS Flight 51-C includes the names of its five crewmembers. The STS 51-C mission marked the third trip of the Space Shuttle Discovery into space, which is referenced by the three colored trailing strips behind the orbiter in the United States red, white and blue. It was the first Space Shuttle mission totally dedicated to the U.S. Department of Defense, hence the DoD central eagle on the mission patch. The five stars on the upper part of the golden band of the DoD insignia represent the five astronauts. As this mission was classified, the patch includes no further detail as to the mission's payload or nature. For similar reasons, the name of the used orbiter was omitted from the patch.
Almost exactly a year after STS-51-C, Space Shuttle Challenger was destroyed with all hands on board during the STS-51-L mission including Ellison Onizuka, a crew member on both flights. As part of the investigation into the disaster, it was reported to the Rogers Commission that during the launch of STS-51-C, the worst Space Shuttle Solid Rocket Booster (SRB) blow-by effects of any mission prior to STS-51-L occurred, indicating conclusively that the Viton O-rings were not sufficiently sealing the hot gases inside the combustion chambers of the SRBs while firing. After they were recovered post-flight, the O-rings in both the right and left SRBs showed some degree of charring, but analysis of the center field joint of the right SRB showed an unprecedented penetration of the primary O-ring and heavy charring on the secondary O-ring. [7]
This information is significant to the established consensus that low air temperature was a major factor in Challenger's destruction because the temperature at STS-51-C's launch was also, up to its time, the coldest recorded during a shuttle launch, at only 12 °C (54 °F). [7]
The Space Shuttle is a retired, partially reusable low Earth orbital spacecraft system operated from 1981 to 2011 by the U.S. National Aeronautics and Space Administration (NASA) as part of the Space Shuttle program. Its official program name was Space Transportation System (STS), taken from the 1969 plan led by U.S. Vice President Spiro Agnew for a system of reusable spacecraft where it was the only item funded for development.
Space Shuttle Challenger (OV-099) was a Space Shuttle orbiter manufactured by Rockwell International and operated by NASA. Named after the commanding ship of a nineteenth-century scientific expedition that traveled the world, Challenger was the second Space Shuttle orbiter to fly into space after Columbia, and launched on its maiden flight in April 1983. It was destroyed in January 1986 soon after launch in a disaster that killed all seven crewmembers aboard.
Space Shuttle Discovery is a retired American Space Shuttle orbiter. The spaceplane was one of the orbiters from NASA's Space Shuttle program and the third of five fully operational orbiters to be built. Its first mission, STS-41-D, flew from August 30 to September 5, 1984. Over 27 years of service it launched and landed 39 times, aggregating more spaceflights than any other spacecraft to date. The Space Shuttle launch vehicle had three main components: the Space Shuttle orbiter, a single-use central fuel tank, and two reusable solid rocket boosters. Nearly 25,000 heat-resistant tiles cover the orbiter to protect it from high temperatures on re-entry.
On Saturday, February 1, 2003, Space Shuttle Columbia disintegrated as it re-entered the atmosphere over Texas and Louisiana, killing all seven astronauts on board. It was the second Space Shuttle mission to end in disaster, after the loss of Challenger and crew in 1986.
STS-9 was the ninth NASA Space Shuttle mission and the sixth mission of the Space Shuttle Columbia. Launched on November 28, 1983, the ten-day mission carried the first Spacelab laboratory module into orbit.
STS-4 was the fourth NASA Space Shuttle mission, and also the fourth for Space Shuttle Columbia. Crewed by Ken Mattingly and Henry Hartsfield, the mission launched on June 27, 1982, and landed a week later on July 4, 1982. Due to parachute malfunctions, the SRBs were not recovered.
STS-6 was the sixth NASA Space Shuttle mission and the maiden flight of the Space ShuttleChallenger. Launched from Kennedy Space Center on April 4, 1983, the mission deployed the first Tracking and Data Relay Satellite, TDRS-1, into orbit, before landing at Edwards Air Force Base on April 9, 1983. STS-6 was the first Space Shuttle mission during which a Extravehicular activity was conducted, and hence was the first in which the Extravehicular Mobility Unit (EMU) was used.
On January 28, 1986, the Space Shuttle Challenger broke apart 73 seconds into its flight, killing all seven crew members aboard. The spacecraft disintegrated 46,000 feet (14 km) above the Atlantic Ocean, off the coast of Cape Canaveral, Florida, at 11:39 a.m. EST. It was the first fatal accident involving an American spacecraft while in flight.
STS-41-D was the 12th flight of NASA's Space Shuttle program, and the first mission of Space Shuttle Discovery. It was launched from Kennedy Space Center, Florida, on August 30, 1984, and landed at Edwards Air Force Base, California, on September 5, 1984. Three commercial communications satellites were deployed into orbit during the six-day mission, and a number of scientific experiments were conducted, including a prototype extendable solar array that would eventually form the basis of the main solar arrays on the International Space Station (ISS).
STS-51-D was the 16th flight of NASA's Space Shuttle program, and the fourth flight of Space Shuttle Discovery. The launch of STS-51-D from Kennedy Space Center (KSC), Florida, on April 12, 1985, was delayed by 55 minutes, after a boat strayed into the restricted Solid Rocket Booster (SRB) recovery zone. STS-51-D was the third shuttle mission to be extended.
STS-51-B was the 17th flight of the NASA Space Shuttle program and the seventh flight of Space Shuttle Challenger. The launch of Challenger on April 29, 1985, was delayed by 2 minutes and 18 seconds, due to a launch processing failure. Challenger was initially rolled out to the pad to launch on the STS-51-E mission. The shuttle was rolled back when a timing issue emerged with the TDRS-B satellite. When STS-51-E was canceled, Challenger was remanifested with the STS-51-B payloads. The shuttle landed successfully on May 6, 1985, after a week-long mission.
STS-51-G was the 18th flight of NASA's Space Shuttle program, and the fifth flight of Space Shuttle Discovery. The seven-day mission launched from Kennedy Space Center, Florida, on June 17, 1985, and landed at Edwards Air Force Base, California, on June 24, 1985. Sultan bin Salman Al Saud from Saudi Arabia was on board as a payload specialist; Al Saud became the first Arab, the first Muslim, and the first member of a royal family to fly into space. It was also the first Space Shuttle mission which flew without at least one astronaut from the pre-Shuttle era among its crew.
STS-61-A was the 22nd mission of NASA's Space Shuttle program. It was a scientific Spacelab mission, funded and directed by West Germany – hence the non-NASA designation of D-1. STS-61-A was the ninth and last successful flight of Space Shuttle Challenger before the disaster. STS-61-A holds the current record for the largest crew—eight people—aboard any single spacecraft for the entire period from launch to landing.
STS-26 was the 26th NASA Space Shuttle mission and the seventh flight of the orbiter Discovery. The mission launched from Kennedy Space Center, Florida, on September 29, 1988, and landed four days later on October 3, 1988. STS-26 was declared the "Return to Flight" mission, being the first mission after the Space Shuttle Challenger disaster of January 28, 1986. It was the first mission since STS-9 to use the original Space Transportation System (STS) numbering system, the first to have all its crew members wear pressure suits for launch and landing since STS-4, and the first mission with bailout capacity since STS-4. STS-26 was also the first U.S. space mission with an all-veteran crew since Apollo 11, with all of its crew members having flown at least one prior mission.
STS-30 was the 29th NASA Space Shuttle mission and the fourth mission for Space Shuttle Atlantis. It was the fourth shuttle launch since the Challenger disaster and the first shuttle mission since the disaster to have a female astronaut on board. The mission launched from Kennedy Space Center, Florida, on May 4, 1989, and landed four days later on May 8, 1989. During the mission, Atlantis deployed the Venus-bound Magellan probe into orbit.
STS-33 was a NASA Space Shuttle mission and the 9th flight of Discovery, during which Space Shuttle Discovery deployed a payload for the United States Department of Defense (DoD). It was the 32nd shuttle mission overall, the ninth flight of Discovery, the fifth shuttle mission in support of the DoD, the seventh post-Space Shuttle Challenger disaster mission and the last Shuttle mission of the 1980s. Due to the nature of the mission, specific details remain classified. Discovery lifted off from Launch Complex 39B at Kennedy Space Center (KSC), Florida, on November 22, 1989, at 7:23:30 p.m. EST; it landed at Edwards Air Force Base, California, on November 27, 1989, at 7:30:16 p.m. EST.
STS-38 was a Space Shuttle mission by NASA using the Space Shuttle Atlantis. It was the 37th shuttle mission and carried a classified payload for the U.S. Department of Defense (DoD). It was the seventh flight for Atlantis and the seventh flight dedicated to the Department of Defense. The mission was a 4-day mission that traveled 3,291,199 km (2,045,056 mi) and completed 79 revolutions. Atlantis landed at Kennedy Space Center's Shuttle Landing Facility's runway 33. The launch was originally scheduled for July 1990 but was rescheduled due to a hydrogen leak found on Space ShuttleColumbia during the STS-35 countdown. During a rollback to the Orbiter Processing Facility Atlantis was damaged during a hail storm. The eventual launch date of November 15, 1990, was set due to a payload problem. The launch window was between 18:30 and 22:30 EST. The launch occurred at 18:48:13 EST. The mission ended with a landing at the Shuttle Landing Facility, marking the first time in five years that a mission returned to the Kennedy Space Center since STS-51-D. This also marked the first time Atlantis ended a mission at the Kennedy Space Center.
STS-78 was the fifth dedicated Life and Microgravity Spacelab mission for the Space Shuttle program, flown partly in preparation for the International Space Station project. The mission used the Space Shuttle Columbia, which lifted off successfully from Kennedy Space Center's Launch Pad 39B on June 20, 1996. This marked the 78th flight of the Space Shuttle and 20th mission for Columbia.
STS-51-L was the disastrous 25th mission of NASA's Space Shuttle program and the final flight of Space Shuttle Challenger.
The Manned Spaceflight Engineer Program was an effort by the United States Air Force to train American military personnel as payload specialists for United States Department of Defense missions on the Space Shuttle program.