OSCAR 27
NORAD 18361· COSPAR 1987-080A· Navigation· LEO
Launch
Launched on Sep 16, 1987 from Space Launch Complex 5, United States of America aboard a Scout G-1.
Scout G-1 | Transit-O 27,29 →Live · TLE epoch 2026-09-08 23:30 UTC
Orbit class
LEO — Low Earth Orbit (circular, < 2,000 km)
Operator
United States Government
Country
United States
Manufacturer
—
Launched
Sep 16, 1987
Mass
—
Apogee
1,173 km
Perigee
1,017 km
Inclination
90.36°
Period
1.78 h
Altitude history
Apogee and perigee for OSCAR 27 across 103 days of archived orbital elements (104 element sets, one per day).
Trend
Stable
Change
-0.1 km
Rate
-0.00 km/day
Now
1017 × 1173 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 1987-080 (Scout G-1 | Transit-O 27,29).
- OSCAR 29 · 18362
Sources & further reading
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