CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1963-0068
THOR AGENA D
THOR AGENA D (NORAD 668) came down while still attached to its host on 12 October 1963, after 19 days in orbit.
Official date
NORAD number
668
International designator
1963-037A
Object type
Spacecraft
Country
United States
Launched
23 Sep 1963Vandenberg
Re-entered (UTC)
12 Oct 1963UTC calendar day
Time in orbit
19 days19 days
How it ended
Came down attached to its host
Latitude range
74.9°N to 74.9°SFinal inclination 74.9°
Mass
223 kg
Operator
NRO / CIA
Built by
LMSC
Bus
CORONA KH-4A
Programme
CORONA J
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 74.9°, allowed a re-entry anywhere between 74.9°N and 74.9°S.
Life in orbit
19 days
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1963-0068
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1963-0068
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.