CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1964-0071
OPS 3491
OPS 3491 (NORAD 828) came down while still attached to its host on 6 August 1964, after 27 days in orbit.
Official date
NORAD number
828
International designator
1964-037A
Object type
Spacecraft
Country
United States
Launched
10 Jul 1964Vandenberg
Re-entered (UTC)
6 Aug 1964UTC calendar day
Time in orbit
27 days27 days
How it ended
Came down attached to its host
Latitude range
85.0°N to 85.0°SFinal inclination 85.0°
Mass
225 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 85.0°, allowed a re-entry anywhere between 85.0°N and 85.0°S.
Life in orbit
27 daysOPS 3491’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/1964-0071
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1964-0071
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.