SL-3 R/B
Launch
Launched on Jun 29, 1977 from 31/6, Kazakhstan aboard a Vostok 8A92M.
Vostok 8A92M | Meteor-Priroda 2-2 →Live · TLE epoch 2026-09-09 03:36 UTC
Orbit class
SSO — Sun-Synchronous (LEO at 96–102° inclination)
Operator
Russian / Soviet Government
Country
Russia
Manufacturer
—
Launched
Jun 29, 1977
Mass
—
Apogee
427 km
Perigee
418 km
Inclination
97.59°
Period
1.55 h
Altitude history
Apogee and perigee for SL-3 R/B across 103 days of archived orbital elements (105 element sets, one per day).
Trend
Decaying
Change
-5.9 km
Rate
-0.06 km/day
Now
418 × 427 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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