CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1999-0249
SL-12 R/B
SL-12 R/B (NORAD 20354) re-entered Earth’s atmosphere on 25 July 1999, after 9 years, 7 months in orbit.
Official date
NORAD number
20354
International designator
1989-096C
Object type
Rocket body
Country
USSR
Launched
1 Dec 1989Baikonur Cosmodrome
Re-entered (UTC)
25 Jul 1999UTC calendar day
Time in orbit
9 years, 7 months3,523 days
How it ended
Re-entered (natural decay)
Latitude range
51.2°N to 51.2°SFinal inclination 51.2°
Mass
12,600 kg
Where it came down
Latitude band its orbit allowedExact position not recorded
No position was recorded for this re-entry. Its final orbit, inclined at 51.2°, allowed a re-entry anywhere between 51.2°N and 51.2°S.
Life in orbit
9 years, 7 monthsSL-12 R/B’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 25 Jul 1999
3 entriesFrom the same launch
1989-096
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1999-0249
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1999-0249
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.