CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1968-0253
ATS 4
ATS 4 (NORAD 3344) came down while still attached to its host on 17 October 1968, after 2 months in orbit.
Official date
NORAD number
3344
International designator
1968-068A
Object type
Spacecraft
Country
United States
Launched
10 Aug 1968Cape Canaveral
Re-entered (UTC)
17 Oct 1968UTC calendar day
Time in orbit
2 months68 days
How it ended
Came down attached to its host
Latitude range
29.0°N to 29.0°SFinal inclination 29.0°
Mass
367 kg
Operator
GSFC
Built by
Hughes
Bus
HS-306
Programme
ATS
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 29.0°, allowed a re-entry anywhere between 29.0°N and 29.0°S.
Life in orbit
2 monthsATS 4’s lowest and highest points above Earth, week by week, from its tracking history.
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1968-0253
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1968-0253
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.