SL-16 R/B
Launch
Launched on Jul 17, 1999 from 45/1, Kazakhstan aboard a Zenit-2.
Zenit-2 | Okean-O →Live · TLE epoch 2026-10-24 04:49 UTC
Orbit class
SSO — Sun-Synchronous (LEO at 96–102° inclination)
Operator
Russian / Soviet Government
Country
Russia
Manufacturer
—
Launched
Jul 17, 1999
Mass
—
Apogee
637 km
Perigee
618 km
Inclination
97.97°
Period
1.62 h
Altitude history
Apogee and perigee for SL-16 R/B across 148 days of archived orbital elements (150 element sets, one per day).
Trend
Stable
Change
-0.4 km
Rate
-0.00 km/day
Now
618 × 637 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 1999-039 (Zenit-2 | Okean-O).
- OKEAN-O · 25860
Sources & further reading
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