STS-38

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STS-38
STS038-84-23 Atlantis.jpg
Atlantis in orbit; in-flight photography of this Department of Defense support mission is limited
Names Space Transportation System-38
Mission type DoD satellite deployment
Operator NASA
COSPAR ID 1990-097A OOjs UI icon edit-ltr-progressive.svg
SATCAT no. 20935 OOjs UI icon edit-ltr-progressive.svg
Mission duration4 days, 21 hours, 54 minutes, 31 seconds
Distance travelled3,291,199 km (2,045,056 mi)
Orbits completed79
Spacecraft properties
Spacecraft Space Shuttle Atlantis
Launch mass2,055,639 kg (4,531,908 lb)
Landing mass86,677 kg (191,090 lb)
Payload mass(Classified)
Crew
Crew size5
Members
Start of mission
Launch dateNovember 15, 1990, 23:48:15 (November 15, 1990, 23:48:15)  UTC (6:48:15 pm  EST)
Launch site Kennedy, LC-39A
Contractor Rockwell International
End of mission
Landing dateNovember 20, 1990, 21:42:46 (November 20, 1990, 21:42:46) UTC (4:42:46 pm EST)
Landing siteKennedy, SLF Runway 33
Orbital parameters
Reference system Geocentric orbit [1]
Regime Low Earth orbit
Perigee altitude 260 km (160 mi)
Apogee altitude 269 km (167 mi)
Inclination 28.45°
Period 89.79 minutes
STS-38 patch.svg
STS-38 mission patch
Sts-38 crew.jpg
Standing: Gemar, Springer and Meade
Seated: Culbertson and Covey
←  STS-41 (36)
STS-35 (38) →

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 Shuttle Columbia 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.

Contents

Crew

Position Astronaut
Commander Richard O. Covey
Third spaceflight
Pilot Frank L. Culbertson Jr.
First spaceflight
Mission Specialist 1 Carl J. Meade
First spaceflight
Mission Specialist 2
Flight Engineer		 Robert C. Springer
Second and last spaceflight
Mission Specialist 3 Charles D. Gemar
First spaceflight

Crew seat assignments

Seat [2] LaunchLanding Space Shuttle seating plan.svg
Seats 1–4 are on the flight deck.
Seats 5–7 are on the mid-deck.
1Covey
2Culbertson
3MeadeGemar
4Springer
5GemarMeade
6Unused
7Unused

Preparations and launch

The launch occurred on November 15, 1990, 18:48:13 EST. It was originally scheduled for July 9, 1990, however, a liquid hydrogen leak found on Columbia during the STS-35 countdown prompted three precautionary tanking tests on Atlantis at the pad on June 29, 1990, on July 13, and on July 25, 1990. Tests confirmed the hydrogen fuel leak on the external tank side of the external tank/orbiter 43.2 cm (17.0 in) quick disconnect umbilical. This could not be repaired at the pad and Atlantis was rolled back to the VAB on August 9, 1990, demated, then transferred to the Orbiter Processing Facility (OPF). During rollback, the vehicle remained parked outside the VAB for about a day while the Columbia/STS-35 stack was transferred to the pad for launch. While outside, Atlantis suffered minor hail damage to its tiles during a thunderstorm. After repairs were made in the OPF, Atlantis was transferred to the VAB for mating on October 2, 1990. During hoisting operations, the platform beam that was to have been removed from the orbiter's aft compartment fell and caused minor damage, which was repaired. The vehicle rolled out to Pad A on October 12, 1990. The fourth mini-tanking test was performed on October 24, 1990, with no excessive hydrogen or oxygen leakage detected. During the Flight Readiness Review (FRR), the launch date was set for November 9, 1990. The launch was reset for November 15 due to payload problems. Liftoff occurred during a classified launch window lying within a launch period extending from 18:30 to 22:30 EST on November 15, 1990.

Classified payload

According to Aviation Week , the shuttle initially entered a 204 km (127 mi) x 519 km (322 mi) orbit at an inclination of 28.45° to the equator. It then executed three orbital maneuvering system (OMS) burns, the last on orbit #4. The first of these circularized the orbit at 519 km (322 mi).

The first classified payload was code-named USA-67, [3] which was deployed from Atlantis' cargo bay on the seventh orbit and ignited its rocket motor at the ascending node of the eighth orbit to place it in a geostationary transfer orbit (GTO). Aviation Week reported that USA-67 was a secret ELINT gathering satellite headed for geosynchronous orbit and launched to monitor the events during the first Gulf War in 1990. As a result of there being two upper stages aboard STS-38, USA-67 was originally believed to be a Magnum satellite like those deployed on STS-51-C and STS-33, which were launched via a two-stage Inertial Upper Stage (IUS). [4] Today it is believed that USA-67 was instead a secret Satellite Data System (SDS-2) military communications satellite, like those deployed on STS-28 and STS-53. [5] [6]

It is also believed that USA-67 was not the only satellite deployed during STS-38. A publicly released image of Atlantis' vertical stabilizer and upper aft bulkhead, similar to the one released from STS-53, confirms that the ASE (Airborne Support Equipment) for the Inertial Upper Stage (IUS) was absent from this flight. [7] An explanation is that two separate satellites were deployed, using single-stage Payload Assist Module (PAM-D). Rumors that appear to have been substantiated by the identification of an "unknown" geostationary satellite by amateur observers [8] [9] insist that the second payload was a stealth satellite known as Prowler, reportedly intended to covertly inspect other nation's geostationary satellites. [10]

Landing

The mission was extended by one day due to unacceptable crosswinds at the planned landing site of Edwards Air Force Base. Continued adverse conditions led to a decision to shift the landing to the Shuttle Landing Facility (SLF) at the Kennedy Space Center. The SLF had not been used by a returning shuttle mission in five years, since STS-51-D when Discovery suffered extensive brake damage and a ruptured tire during landing. Landing occurred on November 20, 1990, at 21:42:46 UTC (4:42:42 pm EST, local time). The orbiter rolled down Runway 33 for 2,753 m (9,032 ft) and 57 seconds. STS-38 marked the first KSC landing for Atlantis, weighing 86,677 kg (191,090 lb) at landing. [11]

See also

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References

  1. ↑ "Satellite Catalog". Jonathan's Space Page. Archived from the original on October 18, 2018. Retrieved May 24, 2013.
  2. ↑ "STS-38". Spacefacts. Archived from the original on October 30, 2013. Retrieved February 26, 2014.
  3. ↑ "USA-67". NASA. 1990-097B. Archived from the original on August 8, 2020. Retrieved August 21, 2019.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  4. ↑ Molczan, Ted (January 21, 2011). "Unknown GEO Object 2000-653A / 90007 Identified as Prowler" (PDF). Visual Satellite Observer's Home Page. Archived (PDF) from the original on July 27, 2011. Retrieved February 25, 2011.
  5. ↑ "USA-67 observations'". Satobs.org. Archived from the original on September 27, 2007. Retrieved July 28, 2007.
  6. ↑ "GEO SIGINT Satellite'". FAS.org. Archived from the original on December 27, 2007. Retrieved December 1, 2007.
  7. ↑ "The Gateway to Astronaut Photography of Earth". Eol.jsc.nasa.gov. Archived from the original on February 25, 2012. Retrieved August 12, 2010.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  8. ↑ Molczan, Ted (January 21, 2011). "Unknown GEO Object 2000-653A / 90007 Identified as Prowler" (PDF). satobs.org. Archived (PDF) from the original on July 27, 2011. Retrieved July 6, 2011.
  9. ↑ Molczan, Ted (February 19, 2011). "Evaluation of the opportunity to launch Prowler on STS-38" (PDF). satobs.org. Archived (PDF) from the original on July 27, 2011. Retrieved July 6, 2011.
  10. ↑ Windrem, Robert (December 9, 2004). "What is America's top-secret spy program?". NBC News. Archived from the original on September 15, 2023. Retrieved November 17, 2019.
  11. ↑ "Space Shuttle Missions Summary" (PDF). NASA. September 2011. p. 2-41. Archived (PDF) from the original on February 3, 2023. Retrieved January 31, 2022.PD-icon.svg This article incorporates text from this source, which is in the public domain .
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