STS-61-C

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STS-61-C
STS-61-C SATCOM Ku-1 deployment.jpg
Satcom-K1 is deployed from Columbia's payload bay.
Names Space Transportation System-24
Mission typeSatellite deployment
Microgravity research
Operator NASA
COSPAR ID 1986-003A OOjs UI icon edit-ltr-progressive.svg
SATCAT no. 16481
Mission duration6 days, 2 hours, 3 minutes, 51 seconds
Distance travelled4,069,481 km (2,528,658 mi)
Orbits completed98
Spacecraft properties
Spacecraft Space Shuttle Columbia
Launch mass116,121 kg (256,003 lb)
Landing mass95,325 kg (210,156 lb)
Payload mass14,724 kg (32,461 lb)
Crew
Crew size7
Members
Start of mission
Launch dateJanuary 12, 1986, 11:55:00 (January 12, 1986, 11:55:00)  UTC (6:55 am  EST)
Launch site Kennedy, LC-39A
Contractor Rockwell International
End of mission
Landing dateJanuary 18, 1986, 13:58:51 (January 18, 1986, 13:58:51) UTC (5:58:51 am  PST)
Landing site Edwards, Runway 22
Orbital parameters
Reference system Geocentric orbit
Regime Low Earth orbit
Perigee altitude 331 km (206 mi)
Apogee altitude 338 km (210 mi)
Inclination 28.45°
Period 91.20 minutes
Instruments
  • Comet Halley Active Monitoring Program (CHAMP)
  • Getaway Special (GAS) canisters
  • Shuttle Infrared Leeside Temperature Sensing (SILTS)
  • Shuttle Student Involvement Program (SSIP)
STS-61-c-patch.png
STS-61-C mission patch
STS-61-C crew.jpg
Standing: Nelson, Hawley and Nelson
Seated: Cenker, Bolden, Gibson and Chang-Díaz
←  STS-61-B (23)
STS-51-L (25) →

STS-61-C was the 24th mission of NASA's Space Shuttle program, and the seventh mission of Space Shuttle Columbia. It was the first time that Columbia, the first space-rated Space Shuttle orbiter to be constructed, had flown since STS-9. The mission launched from Florida's Kennedy Space Center on January 12, 1986, and landed six days later on January 18, 1986. STS-61-C's seven-person crew included the first Costa Rican-born astronaut, Franklin Chang-Díaz, the second African-American shuttle pilot, Charles Bolden, and the second sitting politician to fly in space, Rep. Bill Nelson (D-FL). Both Bolden and Nelson would also later go on to become Administrators of NASA. STS-61-C was the last shuttle mission before the Space Shuttle Challenger disaster, which occurred ten days after STS-61-C's landing.

Contents

Crew

Position Astronaut
Commander Flag of the United States.svg Robert L. Gibson
Second spaceflight
Pilot Flag of the United States.svg Charles Bolden
First spaceflight
Mission Specialist 1 Flag of the United States.svg George Nelson
Second spaceflight
Mission Specialist 2
Flight Engineer		 Flag of the United States.svg Steven Hawley
Second spaceflight
Mission Specialist 3 Flag of the United States.svg / Flag of Costa Rica.svg Franklin Chang-Díaz
First spaceflight
Payload Specialist 1 Flag of the United States.svg Bill Nelson (U.S. Rep. D-FL)
Only spaceflight
Congressional observer
Payload Specialist 2 Flag of the United States.svg Robert J. Cenker
Only spaceflight
Sponsor: RCA
Nelson was a Democratic Representative from Florida acting as a congressional observer. He was the second sitting member of Congress in space. Senator Jake Garn (R-UT) had previously flown on STS-51-D in the prior year.

Backup crew
Position Astronaut
Payload Specialist 2 Flag of the United States.svg Gerard E. Magilton
Sponsor: RCA

Crew seat assignments

Seat [1] LaunchLanding Space Shuttle seating plan.svg
Seats 1–4 are on the flight deck.
Seats 5–7 are on the mid-deck.
1Gibson
2Bolden
3G. NelsonChang-Díaz
4Hawley
5Chang-DíazG. Nelson
6B. Nelson
7Cenker

Mission background

STS-61-C lifts off from Launch Complex 39A at Kennedy Space Center Space Shuttle Columbia launches on STS-61-C.jpg
STS-61-C lifts off from Launch Complex 39A at Kennedy Space Center
AttemptPlannedResultTurnaroundReasonDecision pointWeather go (%)Notes
118 Dec 1985, 7:00:00 amScrubbed—WeatherTechnicians needed additional time to close out the orbiter's aft compartment. [2]
219 Dec 1985, 7:55:00 amScrubbed1 day 0 hours 55 minutesTechnical18 Dec 1985, 7:54 am ​(T−00:00:14)The right SRB's Hydraulic Power Unit displayed an out-of-tolerance turbine reading.
36 Jan 1986, 7:05:00 amScrubbed17 days 23 hours 10 minutesTechnical6 Jan 1986, 7:04 am ​(T−00:00:31)Countdown was held at T−02:55 due to a LOX fill and drain valve not closing. [3] [ page needed ] The countdown stopped at T−31 seconds when a liquid oxygen replenish valve failed to close. [4]
47 Jan 1986, 7:05:00 amScrubbed1 day 0 hours 0 minutesWeather7 Jan 1986, 9:33 am ​(T−00:09:00 hold)Bad weather at transoceanic abort landing sites. [5]
59 Jan 1986, 7:05:00 amScrubbed2 days 0 hours 0 minutesTechnical8 Jan 1986, 7:05 amProblem with SSME prevalve. [6]
610 Jan 1986, 6:55:00 amScrubbed0 days 23 hours 50 minutesWeather10 Jan 1986, 8:45 am ​(T−00:09:00 hold)Heavy rainfall in KSC area. [7]
712 Jan 1986, 6:55:00 amSuccess2 days 0 hours 0 minutesTotal turnaround time 25 days. [2]

STS-61-C saw Columbia return to flight for the first time since the STS-9 mission in November 1983, after having undergone major modifications over the course of 18 months by Rockwell International in California. Most notable of these modifications was the addition of the SILTS (Shuttle Infrared Leeside Temperature Sensing) pod atop Columbia's vertical stabilizer, which used an infrared camera to observe reentry heating on the shuttle's left wing and part of its fuselage. The camera was only used for a few more missions after STS-61-C, but the pod remained on Columbia for the remainder of its operational life. Smaller and more discreet modifications were also added at various points throughout the shuttle. The bulky ejection seats, which had been disabled after STS-4, were replaced with conventional seats and head-up displays for the commander and pilot were installed. [8]

The launch was originally scheduled for December 18, 1985, but the closeout of an aft orbiter compartment was delayed, and the mission was rescheduled for the following day. However, on December 19, 1985, the countdown was stopped at T−14 seconds due to an out-of-tolerance turbine reading on the right SRB's hydraulic system. Another launch attempt, on January 6, 1986, [9] was terminated at T−31 seconds because of a problem in a valve in the liquid oxygen system. The countdown was recycled to T−20 minutes for a second launch attempt on the same day, but was held at T−9 minutes, and then scrubbed as the launch window expired. [10] Another attempt was made on January 7, 1986, but was scrubbed because of bad weather at contingency landing sites at Dakar, Senegal, and Morón de la Frontera, Spain; yet another attempt, on January 9, 1986, was delayed because of a problem with a main engine prevalve, and on January 10, 1986, heavy rainfall in the launch area led to another scrub. [2]

Mission summary

STS-61-C lands on Runway 22 at Edwards Air Force Base STS-61-C landing.jpg
STS-61-C lands on Runway 22 at Edwards Air Force Base

After four unsuccessful launch attempts, [11] Columbia launched successfully from Kennedy Space Center at 6:55:00 a.m. EST on January 12, 1986. There were no significant anomalies reported during the launch.

The primary objective of the mission was to deploy the Satcom-K1 communications satellite, second in a planned series of geosynchronous satellites owned and operated by RCA Americom; the deployment was successful. Columbia also carried a large number of small scientific experiments, including 13 Getaway Special (GAS) canisters devoted to investigations involving the effect of microgravity on materials processing, seed germination, chemical reactions, egg hatching, astronomy, atmospheric physics, and an experiment designed by Ellery Kurtz and Howard Wishnow of Vertical Horizons* to determine the effects of the space environment on fine arts materials and original oil paintings, flying four of Kurtz's paintings into space. It also carried the Materials Science Laboratory-2 structure for experiments involving liquid bubble suspension by sound waves, melting and resolidification of metallic samples and container-less melting and solidification of electrically conductive specimens. Another small experiment carrier located in the payload bay was the Hitchhiker G-1 (HHG-1), which carried three experiments to study film particles in the orbiter environment, test a new heat transfer system and determine the effects of contamination and atomic oxygen on ultraviolet optics materials, respectively. There were also four in-cabin experiments, three of them part of the Shuttle Student Involvement Program. The shuttle carried an experiment called the Comet Halley Active Monitoring Program (CHAMP), consisting of a 35 mm (1.4 in) camera intended to photograph Halley's Comet through the aft flight deck overhead window. This experiment proved unsuccessful because of battery problems.

According to Bolden, in addition to deploying the RCA satellite, Cenker operated a classified experiment for the United States Air Force during the mission. Bolden was only told that it was a prototype for an infrared imaging camera. [11]

STS-61-C was originally scheduled to last seven days, but NASA decided to end it after four because its delays had delayed the next flight, STS-51-L. [11] It was rescheduled to land on January 17, 1986, but this was brought forward by one day. However, the landing attempt on January 16, 1986, was canceled because of unfavorable weather at Edwards Air Force Base. Continued bad weather forced another wave-off the following day. The flight was extended one more day to provide for a landing opportunity at Kennedy Space Center on January 18, 1986 – this was in order to avoid time lost in an Edwards Air Force Base landing and turnaround. However, bad weather at the KSC landing site resulted in yet another wave-off.

Columbia finally landed at Edwards Air Force Base on its fifth landing attempt [11] at 5:59:51 a.m. PST, on January 18, 1986. The mission lasted a total of 6 days, 2 hours, 3 minutes, and 51 seconds. STS-61-C was the last successful Space Shuttle flight before the Challenger disaster, which occurred on January 28, 1986, only 10 days after Columbia's return. Accordingly, commander Gibson later called the STS-61-C mission "The End of Innocence" for the Shuttle Program. [12]

Nelson, the Florida congressman, had hoped to receive a Florida orange after landing in the state. The personnel at Edwards greeted the crew with what Bolden described as a "basket of California oranges and grapefruits". [11]

Wake-up calls

NASA began a tradition of playing music to astronauts during the Project Gemini, and first used music to wake up a flight crew during Apollo 15. Each track is specially chosen, often by the astronauts' families, and usually has a special meaning to an individual member of the crew, or is applicable to their daily activities. [13]

Flight DaySongArtist/Composer
Day 2"Liberty Bell March" John Philip Sousa
Day 3"Heart of Gold" Neil Young
Day 4"Stars and Stripes Forever" John Philip Sousa

Gag photo

Gag photo of the STS-61-C crew STS-61C gag crew photo.jpg
Gag photo of the STS-61-C crew

During the same session as the official crew photo, the NASA photographer took a gag photo of the STS-61-C crew with their heads and faces obscured by their helmets and visors.

See also

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References

  1. ↑ "STS-61C". Spacefacts. Retrieved February 26, 2014.
  2. 1 2 3 Legler, Robert D.; Bennett, Floyd V. (September 1, 2011). "Space Shuttle Missions Summary" (PDF). Scientific and Technical Information (STI) Program Office. NASA. pp. 2–25. NASA/TM–2011–216142. Archived (PDF) from the original on October 21, 2020.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  3. ↑ Mullane, Mike (2006). Riding Rockets: The Outrageous Tales of a Space Shuttle Astronaut. New York City, New York: Charles Scribner's Sons. ISBN   978-0743296762.
  4. ↑ "Columbia Experiences Second Last-Minute Postponement". Observer–Reporter. January 7, 1986. p. A-3. Retrieved October 29, 2024– via Google News.
  5. ↑ "Columbia Launch Delayed 5th Time". Observer–Reporter. January 8, 1986. p. A-7. Retrieved October 29, 2024– via Google News.
  6. ↑ "Shuttle Launch Scrubbed". Observer–Reporter. January 8, 1986. p. D-1. Retrieved October 29, 2024– via Google News.
  7. ↑ "Rainstorm Forces Seventh Delay Of Shuttle Launch". Observer–Reporter. January 11, 1986. p. B-4. Retrieved October 29, 2024– via Google News.
  8. ↑ "STS-61C Press Kit" (PDF). NASA. Retrieved November 28, 2012.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  9. ↑ "Space Shuttle Is Set For Monday Lift-Off". Observer–Reporter. January 6, 1986. p. A-2. Retrieved October 29, 2024– via Google News.
  10. ↑ Some Trust in Chariots: The Space Shuttle Challenger Experience
  11. 1 2 3 4 5 Bolden, Charles F. (January 6, 2004). "Charles F. Bolden". NASA Johnson Space Center Oral History Project (Interview). Interviewed by Johnson, Sandra; Wright, Rebecca; Ross-Nazzal, Jennifer. Houston, Texas. Retrieved January 6, 2014.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  12. ↑ Evans, Ben (January 11, 2014). "Mission 61C: The Original 'Mission Impossible' (Part 1)". americaspace.com. Retrieved February 28, 2017.
  13. ↑ Fries, Colin (June 25, 2007). "Chronology of Wakeup Calls" (PDF). NASA. Archived from the original (PDF) on December 20, 2023. Retrieved August 13, 2007.PD-icon.svg This article incorporates text from this source, which is in the public domain .
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