SL-12 R/B(2)
Launch
Launched on May 30, 1985 from 200/40, Kazakhstan aboard a Proton K/DM-2.
Proton | Tselina-2 2 →Live · TLE epoch 2026-09-08 19:24 UTC
Orbit class
LEO — Low Earth Orbit (circular, < 2,000 km)
Operator
Russian / Soviet Government
Country
Russia
Manufacturer
—
Launched
May 30, 1985
Mass
—
Apogee
849 km
Perigee
798 km
Inclination
71.11°
Period
1.69 h
Altitude history
Apogee and perigee for SL-12 R/B(2) across 103 days of archived orbital elements (105 element sets, one per day).
Trend
Stable
Change
-0.1 km
Rate
-0.00 km/day
Now
798 × 849 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.
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