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Step 4

Also called P95-1


Designation 25013 / 97063A
Launch date 22 Oct 1997
Country of origin United States
Mission Military: ?
Perigee/Apogee 434/501 km (600 km planned)
Inclination 45°
Period 94 min
Launch vehicle Pegasus #18

Cost: $52 million

End of life

Out of service 22 Oct 1997
Cause Contact was lost right after launch and the solar panels did not deploy. In such conditions the lifetime of the satelllite is limited by the batteries.

External resources

sat-index articles

Technical data


Prime contractor TRW
Platform STEP
Mass at launch 391.5 kg
Mass in orbit  
Dimension 1.52 x 0.91 m
Solar array  
Stabilization 3-axis
DC power 183 W
Design lifetime 2 years

S-band telemetry


Digital Ion Drift Meter (DIDM)
Electromagnetic Propagation Experiment (EMPE)
Orbiting Ozone and Aerosol Measurement (OOAM)

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