CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1966-0015
OPS 4639
OPS 4639 (NORAD 1866) came down while still attached to its host on 20 January 1966, after 27 days in orbit.
Official date
NORAD number
1866
International designator
1965-110A
Object type
Spacecraft
Country
United States
Launched
24 Dec 1965Vandenberg
Re-entered (UTC)
20 Jan 1966UTC calendar day
Time in orbit
27 days27 days
How it ended
Came down attached to its host
Latitude range
80.0°N to 80.0°SFinal inclination 80.0°
Mass
210 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 80.0°, allowed a re-entry anywhere between 80.0°N and 80.0°S.
Life in orbit
27 days
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1966-0015
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1966-0015
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.