Launch from Cape Canaveral (KSC
landing on Edwards AFB
. The launch was delayed 14 minutes by a faulty
communication link between
Control in Houston.
The primary payload, the Upper Atmosphere Research
), was deployed on the third day of the mission.
During its planned 18-month mission, the 14,500-pound observatory was to make
the most extensive study ever conducted of the Earth's troposphere, the upper
level of the planet's envelope of life-sustaining gases which also include the
protective ozone layer.
had ten sensing and measuring devices: Cryogenic
Limb Array Etalon Spectrometer (CLAES); Improved Stratospheric and Mesospheric
Sounder (ISAMS); Microwave Limb Sounder (MLS); Halogen Occultation Experiment
(HALOE); High Resolution Doppler Imager (HRDI); Wind Imaging Interferometer
(WlNDII); Solar Ultraviolet Spectral Irradiance Monitor (SUSIM); Solar/Stellar
Irradiance Comparison Experiment (SOLSTICE); Particle Environment Monitor (PEM)
and Active Cavity Radiometer Irradiance Monitor (ACRIM II).
's initial 18-month mission was extended several
times - it was finally retired after 14 years of service.
payloads were: Ascent Particle Monitor (APM); Middeck 0-Gravity Dynamics
Experiment (MODE); Shuttle Activation Monitor (SAM); Cosmic Ray Effects and
Activation Monitor (CREAM); Physiological and Anatomical Rodent Experiment
(PARE); Protein Crystal Growth II-2 (PCG II-2); Investigations into Polymer
Membrane Processing (IPMP); and the Air Force Maui Optical Site (AMOS
The crew performed the first
Collision Avoidance Maneuver (COLA
) to fly in save distance to a Kosmos 955
satellite segment, which had already been launched on September 20,
Due to bad weather at Cape Canaveral the Discovery was diverted to
the Edwards AFB