CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1988-0592
SL-8 R/B
SL-8 R/B (NORAD 18669) re-entered Earth’s atmosphere on 21 September 1988, after 9 months in orbit.
Official date
NORAD number
18669
International designator
1987-103B
Object type
Rocket body
Country
USSR
Launched
15 Dec 1987Plesetsk Cosmodrome
Re-entered (UTC)
21 Sep 1988UTC calendar day
Time in orbit
9 months281 days
How it ended
Re-entered (natural decay)
Latitude range
65.8°N to 65.8°SFinal inclination 65.8°
Mass
1,434 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 65.8°, allowed a re-entry anywhere between 65.8°N and 65.8°S.
Life in orbit
9 monthsSL-8 R/B’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 21 Sep 1988
4 entriesFrom the same launch
1987-103Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1988-0592
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1988-0592
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.