CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1991-0220
TIP 2
TIP 2 (NORAD 8361) re-entered Earth’s atmosphere on 26 May 1991, after 15 years, 7 months in orbit.
Official date
NORAD number
8361
International designator
1975-099A
Object type
Spacecraft
Country
United States
Launched
12 Oct 1975Vandenberg
Re-entered (UTC)
26 May 1991UTC calendar day
Time in orbit
15 years, 7 months5,705 days
How it ended
Re-entered (natural decay)
Latitude range
89.7°N to 89.7°SFinal inclination 90.3°
Mass
160 kg
Operator
USN NAVAIR
Built by
APL
Bus
Nova
Programme
NNS I
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 90.3°, allowed a re-entry anywhere between 89.7°N and 89.7°S.
Life in orbit
15 years, 7 monthsTIP 2’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 26 May 1991
3 entriesFrom the same launch
1975-099
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1991-0220
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1991-0220
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.