Template:Infobox spaceflight STS-46 was a NASA Space Shuttle mission using Space Shuttle Atlantis and was launched on 31 July 1992 at 9:56:48 am EDT.


Position Astronaut
Commander United States Loren J. Shriver
Third spaceflight
Pilot United States Andrew M. Allen
First spaceflight
Mission Specialist 1 Switzerland Claude Nicollier, ESA
First spaceflight
Mission Specialist 2 United States Marsha S. Ivins
Second spaceflight
Mission Specialist 3 United States Jeffrey A. Hoffman
Third spaceflight
Mission Specialist 4 Costa Rica/United States Franklin R. Chang-Diaz
Third spaceflight
Payload Specialist 1 Italy Franco Malerba, ASI
Only spaceflight

Backup crewEdit

Position Astronaut
Payload Specialist 1 Italy Umberto Guidoni, ASI
First spaceflight

Crew seating arrangementsEdit

Seat[1] Launch Landing STS-121 seating assignments
Seats 1–4 are on the Flight Deck. Seats 5–7 are on the Middeck.
S1 Shriver Shriver
S2 Allen Allen
S3 Nicollier Hoffman
S4 Ivins Ivins
S5 Hoffman Nicollier
S6 Chang-Diaz Chang-Diaz
S7 Malerba Malerba

Mission highlightsEdit

The mission's primary objectives were the deployment of the European Space Agency's EURECA (European Retrievable Carrier) and the joint NASA/Italian Space Agency Tethered Satellite System (TSS). EURECA was deployed a day later than scheduled because of a problem with its data handling system. Seven and a half hours after deployment, the spacecraft's thrusters were fired to boost EURECA to its planned operating altitude of around 310 miles. However, thruster firing was cut to six minutes from 24 minutes because of unexpected attitude data from the spacecraft. The problem was resolved, and EURECA was successfully boosted to its operational orbit on the mission's sixth day. TSS deployment also was delayed one day because of the problems with EURECA. During deployment, the satellite reached a maximum distance of only 860 feet from the orbiter instead of the planned 12.5 miles because of a jammed tether line. After numerous attempts over several days to free the tether, TSS operations were curtailed, and the satellite was stowed for return to Earth. It would be reflown in 1996 on STS-75.

Secondary payloads included the Evaluation of Oxygen Integration with Materials/Thermal Management Processes (EOIM-III/TEMP 2A), Consortium for Materials Development in Space Complex Autonomous Payload (CONCAP II and CONCAP III), IMAX Cargo Bay Camera (ICBC), Limited Duration Space Environment Candidate Materials Exposure (LDCE), Air Force Maui Optical Site (AMOS), Pituitary Growth Hormone Cell Function (PHCF), and the Ultraviolet Plume Instrument (UVPI). The mission was extended by a day in order to complete scientific objectives.

STS-46 marked the 150th human spaceflight to achieve orbit.


See alsoEdit


  1. "STS-46". Spacefacts. Retrieved 4 March 2014. 

External linksEdit

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

Template:European manned spaceflight

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