CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1965-0208
OPS 2739 (STARFLASH 1B)
OPS 2739 (STARFLASH 1B) (NORAD 861) came down while still attached to its host on 31 March 1965, after 7 months in orbit.
Official date
NORAD number
861
International designator
1964-048A
Object type
Spacecraft
Country
United States
Launched
21 Aug 1964Vandenberg
Re-entered (UTC)
31 Mar 1965UTC calendar day
Time in orbit
7 months222 days
How it ended
Came down attached to its host
Latitude range
65.0°N to 65.0°SFinal inclination 115.0°
Mass
135 kg
Operator
NRO / USA ACE
Built by
LMSC
Bus
CORONA ARGON
Programme
CORONA ARGON
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 115.0°, allowed a re-entry anywhere between 65.0°N and 65.0°S.
Life in orbit
7 monthsOPS 2739 (STARFLASH 1B)’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 31 Mar 1965
2 entries
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1965-0208
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1965-0208
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.