CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1970-0133
OPS 4720
OPS 4720 (NORAD 4405) came down while still attached to its host on 17 June 1970, after 28 days in orbit.
Official date
NORAD number
4405
International designator
1970-040A
Object type
Spacecraft
Country
United States
Launched
20 May 1970Vandenberg
Re-entered (UTC)
17 Jun 1970UTC calendar day
Time in orbit
28 days28 days
How it ended
Came down attached to its host
Latitude range
83.0°N to 83.0°SFinal inclination 83.0°
Mass
345 kg
Operator
NRO / CIA
Built by
LMSC
Bus
CORONA KH-4B
Programme
CORONA CR
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 83.0°, allowed a re-entry anywhere between 83.0°N and 83.0°S.
Life in orbit
28 daysOPS 4720’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 17 Jun 1970
3 entriesFrom the same launch
1970-040
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1970-0133
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1970-0133
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.