CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1979-0442
TETR 2
TETR 2 (NORAD 3534) re-entered Earth’s atmosphere on 19 September 1979, after 10 years, 10 months in orbit.
Official date
NORAD number
3534
International designator
1968-100B
Object type
Spacecraft
Country
United States
Launched
8 Nov 1968Cape Canaveral
Re-entered (UTC)
19 Sep 1979UTC calendar day
Time in orbit
10 years, 10 months3,967 days
How it ended
Re-entered (natural decay)
Latitude range
32.8°N to 32.8°SFinal inclination 32.8°
Mass
18 kg
Operator
GSFC
Built by
TRW
Bus
ORS
Programme
TTS
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 32.8°, allowed a re-entry anywhere between 32.8°N and 32.8°S.
Life in orbit
10 years, 10 monthsTETR 2’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1968-100
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1979-0442
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1979-0442
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.