IBSS (Infrared Background Signature Survey)
A test of infrared sensor technology for SDIO
(Strategic Defense Initiative Organization). The IBSS sensors were mounted
on a SPAS-II pallet and used to observe the
Space Shuttle's engines firing from a distance away. They also observed
a variety of common rocket propellants, including nitrogen tetroxide, MMH,
and UDMH, released by three Chemical Release Observation subsatellites launched
from Get-Away Special canisters
on the Shuttle.
| Shuttle deployment sate |
May 1, 1991 |
| Shuttle mission |
STS-39 |
| orbit |
245 × 255 km × 57.0° |
| mass |
1,901 kg |
Related category
SATELLITES
AND SPACE PROBES
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