CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1973-0016
SL-6 PLAT
SL-6 PLAT (NORAD 6309) re-entered Earth’s atmosphere on 13 January 1973.
Official dateFragment record
NORAD number
6309
International designator
1972-098B
Object type
Fragment
Country
USSR
Parent launched
12 Dec 1972Plesetsk Cosmodrome
Re-entered (UTC)
13 Jan 1973UTC calendar day
Time since launch
1 month32 days
How it ended
Re-entered (natural decay)
Latitude range
65.4°N to 65.4°SFinal inclination 65.4°
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 65.4°, allowed a re-entry anywhere between 65.4°N and 65.4°S.
Life in orbit
SL-6 PLAT’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 13 Jan 1973
2 entriesFrom the same launch
1972-098Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1973-0016
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1973-0016
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.