STS-30

From Wikipedia, the free encyclopedia
Jump to: navigation, search
STS-30
Magellan-IUS stack (close).jpg
Closeup of the Magellan/IUS stack.
Mission type Spacecraft deployment
Operator NASA
COSPAR ID 1989-033A
SATCAT № 19968
Mission duration 4 days, 56 minutes, 28 seconds
Distance travelled 2,377,800 kilometres (1,477,500 mi)
Orbits completed 65
Spacecraft properties
Spacecraft Space Shuttle Atlantis
Launch mass 118,441 kilograms (261,118 lb)
Landing mass 87,296 kilograms (192,455 lb)
Payload mass 20,833 kilograms (45,929 lb)
Crew
Crew size 5
Members David M. Walker
Ronald J. Grabe
Mark C. Lee
Norman E. Thagard
Mary L. Cleave
Start of mission
Launch date 4 May 1989, 18:48:59 (1989-05-04UTC18:48:59Z) UTC
Launch site Kennedy LC-39B
End of mission
Landing date 8 May 1989, 19:43:27 (1989-05-08UTC19:43:28Z) UTC
Landing site Edwards Runway 22
Orbital parameters
Reference system Geocentric
Regime Low Earth
Perigee 361 kilometres (224 mi)
Apogee 366 kilometres (227 mi)
Inclination 28.8 degrees
Period 91.8 min

Sts-30-patch.png Sts-30 crew.jpg
Left to right: Grabe, Walker, Thagard, Cleave, Lee


Space Shuttle program
← STS-29 STS-28

STS-30 was the 29th NASA Space Shuttle mission and the fourth mission for Space Shuttle Atlantis. The mission launched from Kennedy Space Center, Florida, on 4 May 1989, and landed four days later on 8 May. During the mission, Atlantis deployed the Venus-bound Magellan probe into orbit.

Crew[edit]

Position Astronaut
Commander David M. Walker
Second spaceflight
Pilot Ronald J. Grabe
Second spaceflight
Mission Specialist 1 Mark C. Lee
First spaceflight
Mission Specialist 2 Norman E. Thagard
Third spaceflight
Mission Specialist 3 Mary L. Cleave
Second[1] spaceflight

Crew seating arrangements[edit]

Seat[2] Launch Landing STS-121 seating assignments.png
Seats 1–4 are on the Flight Deck. Seats 5–7 are on the Middeck.
S1 Walker Walker
S2 Grabe Grabe
S3 Lee Cleave
S4 Thagard Thagard
S5 Cleave Lee

Shuttle processing[edit]

Atlantis spent three months in the Orbiter Processing Facility (OPF-2) after returning to the Kennedy Space Center at the end of STS-27.[3] During this period technicians got to work removing and replacing all of the damaged Thermal Protection System (TPS) tiles that Atlantis sustained during her prior flight. They also took detailed inspections of the shuttle while simultaneously preparing Atlantis for STS-30. The shuttle was rolled over to the Vehicle Assembly Building and mated with ET-29 and an SRB set on 11 March. Eleven days later on 22 March, Atlantis was rolled out to launch pad 39B.[4]

Mission summary[edit]

The launch of Atlantis on STS-30.
Atlantis deploys its landing gear before landing at the end of STS-30.

Space Shuttle Atlantis lifted off from Pad B, Launch Complex 39 at Kennedy Space Center (KSC), Florida, at 14:48 EDT on 4 May 1989.[4] The primary payload, the Magellan spacecraft with its attached Inertial Upper Stage (IUS), was successfully deployed later that day.[5] Magellan was the first American planetary mission in 11 years.

The launch was originally scheduled for 28 April, the first day of a 31-day launch period when Earth and Venus were properly aligned. However, the liftoff was scrubbed at T-31 seconds because of a problem with the liquid hydrogen recirculation pump on Space Shuttle Main Engine (SSME) No. 1, and a vapor leak in the liquid hydrogen recirculation line between the orbiter and external tank.[5] On the rescheduled liftoff date of 4 May 1989, the launch was again delayed until the final five minutes of the launch window due to cloud cover and excessive crosswinds at KSC's Shuttle Landing Facility (SLF).[5] Good landing conditions were required at the SLF in case of a Return To Launch Site (RTLS) abort early in the flight.

The only major glitch during the flight occurred on 7 May 1989, when one of the four general-purpose computers programmed to operate the orbiter failed.[6] The shuttle crew replaced the computer, part of a redundant set, with a backup one. It was the first time a computer had been replaced while in orbit.[6] The glitch had no impact on the crew's safety or the primary objectives of the mission, although some of the activities involved in conducting experiments had to be canceled while the crew was replacing the computer. There also was no impact to the mission when one of the three thrusters on Atlantis' aft right-hand Orbital Maneuvering System (OMS) pod failed during ascent.

However, the STS-30 crew experienced several minor annoyances. A Hasselblad camera used to photograph sites on Earth had to be stowed for the remainder of the mission after a shutter stuck during the crew's third day in space. The Text and Graphics Systems (TAGS), a device to send images and graphics to the orbiter from Mission Control, had to be turned off on Flight Day 2 because of a paper jam. Commander Walker and Pilot Grabe had problems with a device used to take measurements of central venous pressure to determine the effects of microgravity on the cardiovascular system. On the second full day in space, the water dispensing system in the galley malfunctioned, causing some difficulties for the crew in preparing meals.

Atlantis touched down at Runway 22, Edwards Air Force Base, California, on 8 May 1989, at 15:43 EDT. Minutes before landing, the runway had to be switched from 17 to 22 due to high crosswinds. The mission lasted a total of 4 days and 56 minutes.

Payload and experiments[edit]

The Magellan spacecraft was deployed from the shuttle's payload bay six hours and 14 minutes into the mission.[5] Two successive IUS propulsion burns placed the spacecraft on its trajectory to Venus about an hour later. Magellan arrived at Venus in August 1990 and began a 243-day mission of mapping the planet's surface with radar.

Three mid-deck experiments were included on the mission. All had flown before. Mission Specialist Cleave used a portable laptop computer to operate and monitor the Fluids Experiment Apparatus (FEA).[5] An 8-millimeter video camcorder, flown for the first time on the Shuttle, provided the opportunity for the crew to record and downlink on-orbit activities such as the FEA, which was a joint endeavor between Rockwell International and NASA. Payload bay video cameras were used to record storm systems from orbit as part of the Mesoscale Lightning Experiment.[5] Atlantis was also used as a calibration target for a third experiment involving ground-based electro-optical sensors at the US Air Force Maui Optical Station in Hawaii.[5]

Gallery[edit]

See also[edit]

References[edit]

 This article incorporates public domain material from websites or documents of the National Aeronautics and Space Administration.

  1. ^ "Mary L. Cleave". Association of Space Explorers. Retrieved 24 June 2013. 
  2. ^ "STS-30". Spacefacts. Retrieved 26 February 2014. 
  3. ^ NASA (April 1989). "SPACE SHUTTLE MISSION STS-30 PRESS KIT". NASA. Retrieved 3 July 2011. 
  4. ^ a b "STS-30 Atlantis, OV-104, Lifts Off from KSC LC Pad 39B". NASA. 1989. Retrieved 23 June 2013. 
  5. ^ a b c d e f g "STS-30". NASA. Retrieved 23 June 2013. 
  6. ^ a b Peter G. Neumann (1994). "Shuttle Atlantis computer fixed in space (STS-30)". Computer-Related Risks. Addison-Wesley Professional via Google Books. Retrieved 23 June 2013. 

External links[edit]