STS-26
STS-26 was the twenty-sixth space shuttle mission and the seventh flight of the orbiter Discovery. It was the return to flight mission after the Space Shuttle Challenger disaster. It was the first to have all of its crew members wear pressure suits for launch and landing since STS-4 and the first mission with bailout capability since STS-4. It was also the first all-veteran crew mission since Apollo-11 with all of its crew having flown at least on prior mission.
The Space Shuttle is a retired, partially reusable low Earth orbital spacecraft system operated from 1981 to 2011 by the U.S. National Aeronautics and Space Administration (NASA) as part of the Space Shuttle program. Its official program name was Space Transportation System (STS). Five complete Space Shuttle orbiter vehicles were built and flown on a total of 135 missions from 1981 to 2011.
Objects from this launch
4 objects
SATCAT inventory for 1988-091
Last checked: 2026-03-16T12:11:05.465+00:00
Last success: 2026-03-16T12:11:05.465+00:00
Last non-empty: 2026-03-16T12:11:05.465+00:00
Latest snapshot: 2026-03-16T12:11:05.465+00:00
Snapshot hash: 95d189b194c13bf11fa742fe85b68cc31cb7787a8aec0b03d4343f4e37777701
LL2 payloads: 0SATCAT payloads: 2Delta: +2RB: 2DEB: 0UNK: 0
Open SATCAT inventory
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SATCAT payload objects
STS 26
1988-091ANORAD 19547PAYUnited States (US)Ops: D Technical details
Orbit type: LANOrbit center: EALaunch site: AFETRPeriod: 90.86 min
Inc: 28.5°
302 km → 332 km
TDRS 3
1988-091BNORAD 19548PAYUnited States (US)Ops: + Technical details
Orbit type: ORBOrbit center: EALaunch site: AFETRPeriod: 1436.05 minRCS: 38.978 m²
Inc: 12.7°
35607 km → 35964 km
SATCAT non-payload objects
IUS R/B(1)
Technical details
Orbit type: ORBOrbit center: EALaunch site: AFETRPeriod: 496.40 minRCS: 11.756 m²
Inc: 26.7°
304 km → 28475 km
IUS R/B(2)
Technical details
Orbit type: ORBOrbit center: EALaunch site: AFETRPeriod: 1433.20 minRCS: 5.006 m²
Inc: 12.3°
35643 km → 35817 km