The primary payload of the STS-43 mission, Tracking and Data Relay Satellite-E (TDRS-E) attached to an Inertial Upper Stage (IUS) was photographed at the moment of its release from the cargo bay of the Space Shuttle Orbiter Atlantis. The TDRS-E was boosted by the IUS into geosynchronous orbit and positioned to remain stationary 22,400 miles above the Pacific Ocean southwest of Hawaii. The TDRS system provides almost uninterrupted communications with Earth-orbiting Shuttles and satellites, and had replaced the intermittent coverage provided by globe-encircling ground tracking stations used during the early space program. The TDRS can transmit and receive data, and track a user spacecraft in a low Earth orbit. The IUS is an unmarned transportation system designed to ferry payloads from low Earth orbit to higher orbits that are unattainable by the Shuttle. The launch of STS-43 occurred on August 2, 1991.

The free-flying Tracking and Data Relay Satellite-E (TDRS-E), still attached to an Inertial Upper Stage (IUS), was photographed by one of the crewmembers during the STS-43 mission. The TDRS-E was boosted by the IUS into geosynchronous orbit and positioned to remain stationary 22,400 miles above the Pacific Ocean southwest of Hawaii. The TDRS system provides almost uninterrupted communications with Earth-orbiting Shuttles and satellites, and had replaced the intermittent coverage provided by globe-encircling ground tracking stations used during the early space program. The TDRS can transmit and receive data, and track a user spacecraft in a low Earth orbit. The IUS is an unmarned transportation system designed to ferry payloads from low Earth orbit to higher orbits that are unattainable by the Shuttle. The Space Shuttle Orbiter Atlantis for the STS-43 mission was launched on August 2, 1991.

Artist concept shows the Tracking and Data Relay Satellite E (TDRS-E) augmenting a sophisticated TDRS system (TDRSS) communications network after deployment during STS-43 from Atlantis, Orbiter Vehicle (OV) 104. TDRS, built by TRW, will be placed in a geosynchronous orbit and after onorbit testing, which requires several weeks, will be designated TDRS-5. The communications satellite will replace TDRS-3 at 174 degrees West longitude. The backbone of NASA's space-to-ground communications, the TDRSs have increased NASA's ability to send and receive data to spacecraft in low-earth orbit to more than 85 percent of the time. Before TDRS, NASA relied solely on a system of ground stations that permitted communications only 15 percent of the time. Increased coverage has allowed onorbit repairs, live television broadcast from space and continuous dialogues between astronaut crews and ground control during critical periods such as Space Shuttle landings.

STS043-72-059 (2 Aug 1991) --- The Tracking and Data Relay Satellite (TDRS-E), leaves the payload bay of the earth-orbiting Atlantis a mere six hours after the Space Shuttle was launched from Pad 39A at Kennedy Space Center, Florida. TDRS, built by TRW, will be placed in a geosynchronous orbit and after on-orbit testing, which requires several weeks, will be designated TDRS-5. The communications satellite will replace TDRS-3 at 174 degrees West longitude. The backbone of NASA's space-to-ground communications, the Tracking and Data Relay satellites have increased NASA's ability to send and receive data to spacecraft in low-earth orbit to more than 85 percent of the time. The five astronauts of the STS 43 mission are John E. Blaha, mission commander, Michael A. Baker, pilot, and Shannon W. Lucid, G. David Low, and James C. Adamson, all mission specialists.

STS043-72-002 (2 Aug 1991) --- The Tracking and Data Relay Satellite (TDRS-E), leaves the payload bay of the earth-orbiting Atlantis a mere six hours after the Space Shuttle was launched from Pad 39A at Kennedy Space Center, Florida. TDRS, built by TRW, will be placed in a geosynchronous orbit and after on-orbit testing, which requires several weeks, will be designated TDRS-5. The communications satellite will replace TDRS-3 at 174 degrees West longitude. The backbone of NASA's space-to-ground communications, the Tracking and Data Relay satellites have increased NASA's ability to send and receive data to spacecraft in low-earth orbit to more than 85 percent of the time. The five astronauts of the STS 43 mission are John E. Blaha, mission commander, Michael A. Baker, pilot, and Shannon W. Lucid, G. David Low, and James C. Adamson, all mission specialists.

STS043-601-033 (2 Aug 1991) --- The Tracking and Data Relay Satellite (TDRS-E), is seen almost as a silhouette in this 70mm image. The TDRS spacecraft was captured on film as it moved away from the earth-orbiting Atlantis a mere six hours after the shuttle was launched from Pad 39A at Kennedy Space Center, Florida. TDRS, built by TRW, will be placed in a geosynchronous orbit and after on-orbit testing, which requires several weeks, will be designated TDRS-5. The communications satellite will replace TDRS-3 at 174 degrees west longitude. The backbone of NASA's space-to-ground communications, the Tracking and Data Relay Satellites have increased NASA's ability to send and receive data to spacecraft in low-earth orbit to more than 85 percent of the time. Before TDRS, NASA relied solely on a system of ground stations that permitted communications only 15 percent of the time. Increased coverage has allowed on-orbit repairs, live television broadcast from space and continuous dialogues between astronaut crews and ground control during critical periods such as space shuttle landings. The five astronauts of the STS-43 are John E. Blaha, mission commander, Michael a. Baker, pilot, and mission specialists Shannon W. Lucid, G. David Low and James C. Adamson.

STS043-72-020 (2 Aug 1991) --- The Tracking and Data Relay Satellite (TDRS-E), is loosened from its restraint device and begins to leave the payload bay of the earth-orbiting Atlantis. The deployment came a mere six hours after the Space Shuttle was launched from Pad 39A at Kennedy Space Center, Florida. TDRS, built by TRW, will be placed in a geosynchronous orbit and after on-orbit testing, which requires several weeks, will be designated TDRS-5. The communications satellite will replace TDRS-3 at 174 degrees West longitude. The backbone of NASA's space-to-ground communications, the Tracking and Data Relay satellites have increased NASA's ability to send and receive data to spacecraft in low-earth orbit to more than 85 percent of the time. The five astronauts of the STS 43 mission are John E. Blaha, mission commander, Michael A. Baker, pilot, and Shannon W. Lucid, G. David Low, and James C. Adamson, all mission specialists.

STS043-601-042 (2 Aug 1991) --- The Tracking and Data Relay Satellite (TDRS-E), is backdropped against an interesting cloud pattern over blue water soon after leaving the payload bay of the Earth-orbiting Space Shuttle Atlantis. The deployment came a mere six hours after the Space Shuttle was launched from Pad 39A at Kennedy Space Center (KSC), Florida. TDRS, built by TRW, will be placed in a geosynchronous-orbit and after on orbit testing, which requires several weeks, will be designated TDRS-5. The communications satellite will replace TDRS-3 at 174 degrees west longitude. The backbone of NASA's space-to-ground communications, the Tracking and Data Relay satellites have increased NASA's ability to send and receive data to spacecraft in low-Earth orbit to more than 85 percent of the time. The five astronauts of the STS-43 mission are John E. Blaha, mission commander, Michael A. Baker, pilot, and Shannon W. Lucid, G. David Low, and James C. Adamson, all mission specialists.

STS029-71-026 (13 March 1989) --- The Tracking and Data Relay Satellite (TDRS-D) is tilted in the cargo bay prior to its release via a remote system on Discovery's flight deck. This photographic frame was among NASA's third STS-29 photo release. Monday, March 20, 1989. Crewmembers were Astronauts Michael L. Coats, John E. Blaha, James F. Buchli, Robert C. Springer and James P. Bagian.

Five astronauts composed the STS-29 crew. Standing (left ot right) are James P. Bagian, mission specialist 1; Robert C. Springer, mission specialist 3; and James F. (Jim) Buchli, mission specialist 2. Seated (left to right) are John E. Blaha, pilot, and Michael L. Coats, commander. STS-29 launched aboard the Space Shuttle Discovery on March 13, 1989 at 9:57 am (EST). The primary payload was the Tracking and Data Relay Satellite- 4 (TDRS-4).

STS029-S-027 (13 March 1989) --- From Launch Pad 39D, the Space Shuttle Discovery is launched on mission STS-29. Discovery lifted off at 9:57 a.m. (EST), March 13, 1989, carrying the tracking and data relay satellite (TDRS-1) into orbit. Florida vegetation frames the launch scene. Onboard the spacecraft were astronauts Michael L. Coats, commander; John E. Blaha, pilot; and James F. Buchli, James P. Bagian and Robert C. Springer, all mission specialists.

Launched aboard the Space Shuttle Atlantis on August 2, 1991, the STS-43 mission’s primary payload was the Tracking and Data Relay Satellite 5 (TDRS-5) attached to an Inertial Upper Stage (IUS), which became the 4th member of an orbiting TDRS cluster. The flight crew consisted of five astronauts: John E. Blaha, commander; Michael A. Baker, pilot; Shannon W. Lucid, mission specialist 1; James C. Adamson, mission specialist 2; and G. David Low, mission specialist 3.

S89-27380 (15 Dec 1988) --- The 155-ft. long external fuel tank (ET) is slowly lowered for mating with the twin solid rocket boosters (SRB) in Bay 1 of the Vehicle Assembly Building at KSC, as preparations continue for a March 1989 launch of Discovery. Primary payload for the mission will be the tracking and data relay satellite (TDRS-D). Crewmembers are astronauts Michael L. Coats, John E. Blaha, James F. Buchli, Robert C. Springer and James P. Bagain.

S89-28089 (24 Jan 1989) --- The Space Shuttle Discovery is lowered for mating to the external tank and two solid rockert boosters in the vehicle assembly building (VAB) at the Kennedy Space Center. Onboard the spacecraft in mid-March for a five-day mission, on which will be deployed a third tracking and data relay satellite (TDRS-D), will be Astronauts Michael L. Coats, John E. Blaha, James F. Buchli, James P. Bagian and Robert C. Springer.

Five astronauts launched aboard the Space Shuttle Discovery on March 13, 1989 at 9:57 am (EST) for the STS-29 mission. Included were James P. Bagian, mission specialist 1; Robert C. Springer, mission specialist 3; James F. (Jim) Buchli, mission specialist 2; John E. Blaha, pilot; and Michael L. Coats, commander. The mission’s primary payload was the Tracking and Data Relay Satellite-4 (TDRS-4).

Five astronauts launched aboard the Space Shuttle Discovery on March 13, 1989 at 9:57 am (EST) for the STS-29 mission. Included were James P. Bagian, mission specialist 1; Robert C. Springer, mission specialist 3; James F. (Jim) Buchli, mission specialist 2; John E. Blaha, pilot; and Michael L. Coats, commander. The mission’s primary payload was the Tracking and Data Relay Satellite-4 (TDRS-4).

STS029-S-028 (13 March 1989) --- From Launch Pad 39B, the Space Shuttle Discovery is launched on Mission STS-29. Discovery lifted off at 9:57 a.m. (EST), March 13, 1989, carrying the tracking and data relay satellite (TDRS-1) into orbit. Onboard the spacecraft were astronauts Michael L. Coats, commander; John E. Blaha, pilot; and James F. Buchli, James P. Bagian and Robert C. Springer, all mission specialists.

Launched aboard the Space Shuttle Atlantis on August 2, 1991, the STS-43 mission’s primary payload was the Tracking and Data Relay Satellite 5 (TDRS-5) attached to an Inertial Upper Stage (IUS), which became the 4th member of an orbiting TDRS cluster. The flight crew consisted of 5 astronauts: John E. Blaha, commander; Michael A. Baker, pilot; Shannon W. Lucid, mission specialist 1; James C. Adamson, mission specialist 2; and G. David Low, mission specialist 3.

KENNEDY SPACE CENTER, FLA. - The Space Shuttle Atlantis breaks free from the confines of Earth as it soars towards space to begin its STS-43 nine-day mission. The 11:02 a.m. EDT liftoff from Launch Pad 39A was at the opening of the launch window. The five-member crew will conduct a variety of activities, including the primary objective of deploying the fourth Tracking and Data Relay Satellite TDRS-E. Crew members are Mission Commander John E. Blaha, Pilot Michael E. Baker, and Mission Specialists Shannon W. Lucid, James C. Adamson and G. David Low. Photo Credit: NASA

STS043-S-090 (2 Aug 1991) --- The Space Shuttle Atlantis soars toward space to begin a scheduled nine-day mission. The 11:02:00 a.m. (EDT) liftoff from Launch Pad 39A came at the beginning of the launch window. Onboard the spacecraft were astronauts John E. Blaha, mission commander; Michael A. Baker, pilot; and Shannon W. Lucid, James C. Adamson and G. David Low, all mission specialists. Six hours after this picture was taken, the astronauts deployed the Tracking and Data Relay Satellite (TDRS-E).

STS043-S-087 (2 Aug 1991) --- The Space Shuttle Atlantis soars toward space to begin a scheduled nine-day mission. The 11:02:00 a.m. (EDT) liftoff from Launch Pad 39A came at the beginning of the launch window. Onboard the spacecraft were astronauts John E. Blaha, mission commander; Michael A. Baker, pilot; and Shannon W. Lucid, James C. Adamson and G. David Low, all mission specialists. Six hours after this picture was taken, the astronauts deployed the Tracking and Data Relay Satellite (TDRS-E).

STS043-S-088 (2 Aug 1991) --- A low angle, 35mm view of the Space Shuttle Atlantis as it soars toward space to begin a scheduled nine-day mission. The 11:02:00 a.m. (EDT) liftoff from Launch Pad 39A came at the beginning of the launch window. Onboard the spacecraft were astronauts John E. Blaha, mission commander; Michael A. Baker, pilot; and Shannon W. Lucid, James C. Adamson and G. David Low, all mission specialists. Six hours after this picture was taken, the astronauts deployed the Tracking and Data Relay Satellite (TDRS-E).

S89-28111 (3 Feb 1989) --- The Space Shuttle Discovery, atop a mobile launch platform, is rolled through the doors of the huge vehicle assembly building (VAB) at 6 a.m., Feb. 3, 1989 on its way to Launch Complex 39. The trip to the pad takes approximately 5 and 1/2 hours. Onboard the spacecraft in mid-March for a five-day mission, on which will be deployed a third tracking and data relay satellite (TDRS-D), will be Astronauts Michael L. Coats, John E. Blaha, James F. Buchli, James P. Bagian and Robert C. Springer.

S89-28112 (3 Feb 1989) --- The Space Shuttle Discovery, atop a mobile launch platform, is rolled toward Kennedy Space Center's Launch Pad 39-B in the early morning hours of Feb. 3, l989. It rolled through the doors of the huge vehicle assembly building (VAB) at 6 a.m. The trip to the pad takes approximately 5 and 1/2 hours. Onboard the spacecraft in mid-March for a five-day mission, on which will be deployed a third tracking and data relay satellite (TDRS-D), will be Astronauts Michael L. Coats, John E. Blaha, James F. Buchli, James P. Bagian and Robert C. Springer.

S89-28110 (3 Feb 1989) ---The Space Shuttle Discovery, atop a mobile launch platform, is rolled toward Kennedy Space Center's Launch Pad 39-B on Feb. 3, l989. It rolled through the doors of the huge vehicle assembly building (VAB) at 6 a.m.,several hours ago. The Launch Complex is in view here. The trip to the pad takes approximately 5 and 1/2 hours. Onboard the spacecraft in mid-March for a five-day mission, on which will be deployed a third tracking and data relay satellite (TDRS-D), will be Astronauts Michael L. Coats, John E. Blaha, James F. Buchli, James P. Bagian and Robert C. Springer.

S89-25327 (11 Jan 1989) --- Two crewmembers for NASA's STS-29 mission ponder a question from a news reporter during a press conference concerning their scheduled mid-March flight. James P. Bagian, at left, begins to answer the query, as James F. Buchli listens. Out of the frame are other members of the crew--Astronauts Michael L. Coats, mission commander; and John E. Blaha and Robert C. Springer. The five will deploy a tracking and data relay satellite from Discovery's cargo bay as well as perform other important chores on their scheduled five-day flight.

JSC2005-E-22364 (14 June 2005) --- Astronaut John L. Phillips, Expedition 11 NASA ISS science officer and flight engineer, testifies via video screen before the House Subcommittee on Space and Aeronautics chaired by Rep. Ken Calvert (R-Calif.), as he orbited Earth onboard the International Space Station (ISS) at a speed of five miles a second. Phillips was approximately 220 statute miles above Earth, but his radio transmissions were routed to a Tracking and Data Relay Satellite (TDRS) in geostationary orbit at an altitude of about 22,300 miles. Photo credit: NASA/Bill Ingalls.

JSC2005-E-22363 (14 June 2005) --- Astronauts Peggy A. Whitson (left) and Edward M. (Mike) Fincke, former Station residents, share a laugh during the House Subcommittee on Space and Aeronautics hearing chaired by Rep. Ken Calvert (R-Calif.), as current Station astronaut John L. Phillips, Expedition 11 NASA ISS science officer and flight engineer, testifies via video screen in the background. Phillips was approximately 220 statute miles above Earth, but his radio transmissions were routed to a Tracking and Data Relay Satellite (TDRS) in geostationary orbit at an altitude of about 22,300 miles. Photo credit: NASA/Bill Ingalls.

STS029-S-026 (13 Mar 1989) --- A wide shot of the Space Shuttle Discovery lifting off from Launch Pad 39B on mission STS-29. Discovery lifted off at 9:57 a.m. (EST), March 13, 1989, carrying the Tracking And Data Relay Satellite (TDRS-1) into orbit. The brilliant flames associated with the launch are reflected in the marsh waters. Onboard the spacecraft were astronauts Michael L. Coats, commander; John E. Blaha, pilot; and James F. Buchli, James P. Bagian and Robert C. Springer, all mission specialists.

STS-43 Tracking and Data Relay Satellite E (TDRS-E) undergoes preflight processing in the Kennedy Space Center's (KSC's) Vertical Processing Facility (VPF) before being loaded into a payload canister for transfer to the launch pad and eventually into Atlantis', Orbiter Vehicle (OV) 104's, payload bay (PLB). This side of the TDRS-E will rest at the bottom of the PLB therefore the airborne support equipment (ASE) forward frame keel pin (at center of spacecraft) and the umbilical boom running between the two ASE frames are visible. The solar array panels are covered with protective TRW shields. Above the shields the stowed antenna and solar sail are visible. The inertial upper stage (IUS) booster is the white portion of the spacecraft and rests in the ASE forward frame and ASE aft frame tilt actuator (AFTA) frame (at the bottom of the IUS). The IUS booster nozzle extends beyond the AFTA frame. View provided by KSC with alternate number KSC-91PC-1079.

The STS-29 Space Shuttle Discovery mission approaches for a landing at NASA's then Ames-Dryden Flight Research Facility, Edwards AFB, California, early Saturday morning, 18 March 1989. Touchdown was at 6:35:49 a.m. PST and wheel stop was at 6:36:40 a.m. on runway 22. Controllers chose the concrete runway for the landing in order to make tests of braking and nosewheel steering. The STS-29 mission was very successful, completing the launch a Tracking and Data Relay communications satellite, as well as a range of scientific experiments. Discovery's five man crew was led by Commander Michael L. Coats, and included pilot John E. Blaha and mission specialists James P. Bagian, Robert C. Springer, and James F. Buchli.

STS043-83-082 (2-11 Aug 1991) --- Having bade farewell to its Tracking and Data Relay Satellite/IUS payload, Atlantis' cargo bay appears somewhat vacant in this scene, backdropped over the southern two-thirds of the Florida peninsula. Important activity in the payload bay continues, however, with the operation of Space Station Heat Pipe Advanced Radiator Element (SHARE II), an experiment carried on the starboard side (lower left quadrant of frame). Purpose of the SHARE experiment is to demonstrate microgravity thermal vacuum performance of a heat pipe radiator for heat rejection as a prelude to development of a Space Station heat rejection system. The foil covered ring and horseshoe shaped objects aft in the payload bay served as restraint devices for the TDRS-E prior to its deployment six hours after Atlantis lifted off from Kennedy Space Center's Launch Pad 39A.

JSC2005-E-22365 (14 June 2005) --- Astronaut John L. Phillips, Expedition 11 NASA space station science officer and flight engineer, testifies via video screen before the House Subcommittee on Space and Aeronautics chaired by Rep. Ken Calvert (R-Calif.), as he orbited Earth onboard the international space station at a speed of five miles a second. Phillips was approximately 220 statute miles above Earth, but his radio transmissions were routed to a Tracking and Data Relay Satellite (TDRS) in geostationary orbit at an altitude of about 22,300 miles. Astronauts Peggy A. Whitson and Edward M. (Mike) Fincke, former station residents, are visible at left. Photo credit: NASA/Bill Ingalls.

The STS-29 Space Shuttle Discovery mission lands at NASA's then Ames-Dryden Flight Research Facility, Edwards AFB, California, early Saturday morning, 18 March 1989. Touchdown was at 6:35:49 a.m. PST and wheel stop was at 6:36:40 a.m. on runway 22. Controllers chose the concrete runway for the landing in order to make tests of braking and nosewheel steering. The STS-29 mission was very successful, completing the launch of a Tracking and Data Relay communications satellite, as well as a range of scientific experiments. Discovery's five-man crew was led by Commander Michael L. Coats, and included pilot John E. Blaha and mission specialists James P. Bagian, Robert C. Springer, and James F. Buchli.

S89-28107 (3 Feb 1989) --- A low angle view of the Space Shuttle Discovery, atop a mobile launch platform, during its slow move to Kennedy Space Center's Launch Pad 39-B on Feb. 3, l989. It rolled through the doors of the huge vehicle assembly building (VAB) at 6 a.m., hours ago as the blue sky testifies. The trip to the pad takes approximately 5 and 1/2 hours. Onboard the spacecraft in mid-March for a five-day mission, on which will be deployed a third tracking and data relay satellite (TDRS-D), will be Astronauts Michael L. Coats, John E. Blaha, James F. Buchli, James P. Bagian and Robert C. Springer.