OSCAR 31
NORAD 19420· COSPAR 1988-074B· Navigation· LEO
Launch
Launched on Aug 25, 1988 from Space Launch Complex 5, United States of America aboard a Scout G-1.
Scout G-1 | Transit-O 25,31 →Live · TLE epoch 2026-09-09 07:00 UTC
Orbit class
LEO — Low Earth Orbit (circular, < 2,000 km)
Operator
United States Government
Country
United States
Manufacturer
—
Launched
Aug 25, 1988
Mass
—
Apogee
1,174 km
Perigee
1,033 km
Inclination
90.05°
Period
1.79 h
Altitude history
Apogee and perigee for OSCAR 31 across 103 days of archived orbital elements (104 element sets, one per day).
Trend
Stable
Change
-0.0 km
Rate
-0.00 km/day
Now
1033 × 1174 km
Apogee Perigee
Derived from our own archive of CelesTrak orbital elements, sampled every 3 hours. Short windows show drag and station-keeping; they are not a reentry prediction.
Launched with
One other catalogued object still in orbit from launch 1988-074 (Scout G-1 | Transit-O 25,31).
- OSCAR 25 · 19419
Sources & further reading
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