 Launch ofAtlantis | |
| Names | Space Transportation System-27 STS-27R |
|---|---|
| Mission type | DoD satellite deployment |
| Operator | NASA |
| COSPAR ID | 1988-106A |
| SATCATno. | 19670 |
| Mission duration | 4 days, 9 hours, 5 minutes and 37 seconds |
| Distance travelled | 2,916,252 km (1,812,075 mi) |
| Orbits completed | 68 |
| Spacecraft properties | |
| Spacecraft | Space Shuttle Atlantis |
| Launch mass | (Classified) |
| Landing mass | 86,616 kg (190,956 lb) |
| Payload mass | 14,500 kg (32,000 lb) |
| Crew | |
| Crew size | 5 |
| Members | |
| Start of mission | |
| Launch date | December 2, 1988, 14:30:34 (1988-12-02UTC14:30:34Z) UTC (9:30:34 am EST) |
| Launch site | Kennedy,LC-39B |
| Contractor | Rockwell International |
| End of mission | |
| Landing date | December 6, 1988, 23:36:11 (1988-12-06UTC23:36:12Z) UTC (3:36:11 pm PDT) |
| Landing site | Edwards, Runway 17 |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Low Earth orbit |
| Perigee altitude | 437 km (272 mi) |
| Apogee altitude | 447 km (278 mi) |
| Inclination | 57.00° |
| Period | 93.40 minutes |
 STS-27 mission patch  Back row:Shepherd andMullane Front row:Gardner,Gibson andRoss | |
STS-27 was the 27thNASASpace Shuttle mission, and the third flight ofSpace ShuttleAtlantis. Launching on December 2, 1988, on a four-day mission, it was the second shuttle flight after theSpace ShuttleChallenger disaster of January 1986. STS-27 carried aclassified payload for theU.S. Department of Defense (DoD), ultimately determined to be aLacrosse surveillance satellite. The vessel's heat shielding was substantially damaged during lift-off, and crew members thought that they would die during reentry.[1][2] This was a situation that was similar to the one that wouldprove fatal 15 years later onSTS-107. Compared to the damage thatColumbia sustained on STS-107,Atlantis experienced more extensive damage. However, this was over less critical areas and the missing tile was over an antenna which gave extra protection to the spacecraft structure. The mission landed successfully, although intense heat damage needed to be repaired.
The mission is technically designatedSTS-27R, as the original STS-27 designator belonged toSTS-51-I, the twentieth Space Shuttle mission. Official documentation for that mission contained the designator STS-27 throughout. AsSTS-51-L was designated STS-33, future flights with the STS-26 through STS-33 designators would require theR in their documentation to avoid conflicts in tracking data from one mission to another.[3]
| Position | Astronaut | |
|---|---|---|
| Commander | Robert L. Gibson Third spaceflight | |
| Pilot | Guy S. Gardner First spaceflight | |
| Mission Specialist 1 | Richard M. Mullane Second spaceflight | |
| Mission Specialist 2 Flight Engineer | Jerry L. Ross Second spaceflight | |
| Mission Specialist 3 | William M. Shepherd First spaceflight | |
| Seat[4] | Launch | Landing |  Seats 1–4 are on the flight deck. Seats 5–7 are on the mid-deck. |
|---|---|---|---|
| 1 | Gibson | ||
| 2 | Gardner | ||
| 3 | Mullane | Shepherd | |
| 4 | Ross | ||
| 5 | Shepherd | Mullane | |
| 6 | Unused | ||
| 7 | Unused | ||
| Attempt | Planned | Result | Turnaround | Reason | Decision point | Weather go (%) | Notes |
|---|---|---|---|---|---|---|---|
| 1 | 1 Dec 1988, 6:32:00 am | Scrubbed | — | Weather | 1 Dec 1988, 9:15 am (T−00:09:00 hold) | 20[5] | Cloud cover and strong high-altitude winds.[6] Due to the secrecy of the mission, NASA did not provide live coverage of the launch until nine minutes before liftoff.[4] NASA and the Air Force stated that 6:32 AM was the earliest time that launch would occur.[7] |
| 2 | 2 Dec 1988, 9:30:34 am | Success | 1 day 2 hours 59 minutes | T−9 minute hold extended due to high windshear.[8] Countdown clock was held at T−31 seconds to assessTAL site weather.[9] |
The Space ShuttleAtlantis (OV-104), at the time the youngest in NASA's shuttle fleet, made its third flight on a classified mission for theUnited States Department of Defense (DoD). It deployed a single satellite,USA-34.[10] NASA archival information has identified USA-34 asLacrosse 1, a side-looking radar, all-weather surveillance satellite for the U.S.National Reconnaissance Office (NRO) and theCentral Intelligence Agency (CIA).[11]
The mission was originally scheduled to launch on December 1, 1988, but the launch was postponed one day because of cloud cover and strong wind conditions at the launch site.[7] Liftoff occurred fromLC-39B atKennedy Space Center,Florida, on December 2, 1988, at 09:30:34 a.m.EST.[12]Atlantis touched down on December 6, 1988, on Runway 17 atEdwards Air Force Base,California, at 18:36:11 EST.[9] The total mission elapsed time at wheels-stop was 4 days, 9 hours, 5 minutes, and 37 seconds. Atlantis was returned to the Kennedy Space Center on December 13, 1988, and moved into an OPF on December 14, 1988.
There has been speculation that anEVA was conducted during this mission.[13] Interviews with members of the crew several years after the flight confirmed there had been a problem with the satellite upon release, whereupon a rendezvous with the satellite was effected and repairs performed.[14][15] These unspecified repairs could have necessitated a spacewalk, likely performed by Ross and Shepherd. As a classified DoD mission, details or confirmation of such an EVA remain unreleased.[13]
The day afterAtlantis landed, the1988 Armenian earthquake killed tens of thousands in theSoviet Union. At an astronaut meeting Gibson said, "I know many of you may have been very curious about our classified payload. While I can't go into its design features, I can say Armenia was itsfirst target! And we only had the weapon set onstun!"[14]
Atlantis'Thermal Protection System tiles sustained extensive damage during the flight. Ablative insulating material from the starboardsolid rocket booster nose cap had hit the orbiter about 85 seconds into the flight, as seen in footage of the ascent.[1] The STS-27 crew also commented that white material was observed onthe windshield at various times during ascent.[16] The crew made an inspection of the shuttle's impacted starboard side using the shuttle'sCanadarm, but the limited resolution and range of the cameras made it impossible to determine the full extent of the tile damage.
The problem was compounded by the fact that the crew was prohibited from using their standard method of sending images to ground control due to the classified nature of the mission. The crew was forced to use a slow,encrypted transmission method, likely causing the images NASA engineers received to be of poor quality, causing them to think the damage was actually "just lights and shadows". They told the crew the damage did not look any more severe than on past missions.[1]
One report describes the crew as "infuriated" thatMission Control Center seemed unconcerned.[17][18] When Gibson saw the damage he thought to himself, "We are going to die";[2] he and others did not believe that the shuttle would survivereentry. Gibson advised the crew to relax because "No use dying all tensed-up", he said,[14][15] but if instruments indicated that the shuttle was disintegrating, Gibson planned to "tell mission control what I thought of their analysis" in the remaining seconds before his death.[1][14]
Mullane recalled that while filming the reentry through the upper deck's overhead windows, "I had visions of molten aluminum being smeared backwards, like rain on a windshield". Although the shuttle landed safely, "The damage was much worse than any of us had expected", he wrote.[14] Upon landing, the magnitude of the damage to the shuttle astonished NASA; over 700 damaged tiles were noted, and one tile was missing altogether.[6]: 153 This missing tile had fortunately been located over the aluminum mounting plate for anL-band antenna (one of six, part of theTactical air navigation system (TACAN) landing system), perhaps preventing a burn-through of the sort that would ultimatelydoomColumbia in 2003.[4][1] There was almost no damage present on the orbiter's left side. STS-27Atlantis was the most damaged launch-entry vehicle to return to Earth successfully.[19] Gibson believed that had the shuttle been destroyed, Congress would have ended the shuttle program given that only one successful mission had occurred between his flight and theloss ofChallenger.[14]
A review team investigated the cause, beginning with a detailed inspection of theAtlantis TPS damage, and a review of related inspection reports to establish an in-depth anomaly definition. An exhaustive data review followed to develop a fault tree and several failure scenarios. This and other information gained during the review formed the basis for the team's findings and recommendations.[16]
NASA began a tradition of playing music to astronauts duringProject Gemini, and first used music to awaken a flight crew duringApollo 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.[20]
| Flight Day | Song | Artist/Composer |
|---|---|---|
| Day 2 | Army fight song | |
| Day 3 | "Rawhide" parody | Dimitri Tiomkin |
| Day 4 | "Do You Want to Know a Secret" parody | Mike Cahill |
This article incorporates text from this source, which is in thepublic domain. This article incorporates text from this source, which is in thepublic domain. This article incorporates text from this source, which is in thepublic domain. This article incorporates text from this source, which is in thepublic domain. This article incorporates text from this source, which is in thepublic domain. This article incorporates text from this source, which is in thepublic domain.Space ShuttleAtlantis (OV-104) | ||
|---|---|---|
| Completed flights | .jpg) | |
| Status |
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| On display | ||
