LowEarth

SL-8 R/B

NORAD 12139· COSPAR 1981-003B· Active satellite· Other / Unclassified· LEO
Launch
Launched on Jan 16, 1981 from 132/1 (132L), Russia aboard a Kosmos-3M (11K65M).
Kosmos-3M | Taifun-1 12
Live · TLE epoch 2026-09-08 17:35 UTC
Orbit class
LEO — Low Earth Orbit (circular, < 2,000 km)
Operator
Russian / Soviet Government
Country
Russia
Manufacturer
Launched
Jan 16, 1981
Mass
Apogee
684 km
Perigee
354 km
Inclination
82.94°
Period
1.58 h

Altitude history

Apogee and perigee for SL-8 R/B across 103 days of archived orbital elements (105 element sets, one per day).

Trend
Decaying
Change
-10.5 km
Rate
-0.10 km/day
Now
354 × 684 km
527703352May 28Sep 9
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.

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