Key statistics
Satellite OPS 2644 at a glance.
Uptime
20774
Days in orbit
Revolutions
≈ 12.6
Per day
Orbit
LEO
Low Earth Orbit
Inclination
80.4
Latest
Satellite identification and parameters
Extended collection of information and parameters for OPS 2644.
Object identification
Identified? True
Debris? False
Object name: OPS 2644
International designator: 1969-010B
Object number (NORAD): 3673
Object ID (CCSDS): 3673
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 113.957 minutes
Inclination: 80.3949 deg
SMA: 7786.105 km
Apoapsis: 1427.916 km
Periapsis: 1388.025 km
RAAN: 316.6235 deg
Eccentricy: 0.0025617
Argument of periapsis: 103.4835 deg
Mean anomaly: 323.045 deg
Mean motion: 12.63637063 rev/day
Mean motion (dot): 0.0000006 rev/day2
B* drag term: 0.00029098 1/REarth
Two-line elements (TLE)
Creation date: Dec. 21, 2025, 11:56 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 21, 2025, 8:39 p.m. UTC
TLE line 0: 0 OPS 2644
TLE line 1: 1 3673U 69010B 25355.86069505 .00000060 00000-0 29098-3 0 9991
TLE line 2: 2 3673 80.3949 316.6235 0025617 103.4835 323.0450 12.63637063621064
Live tracking on map
Real-time ground track for satellite OPS 2644.
In-orbit conjunctions
There are no conjunctions computed for OPS 2644, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
The KH-4B (Keyhole-4B) was sixth optical reconnaissance satellite version in the Corona-program.
OPS 2644 was lifted into orbit during the mission ‘Thorad SLV-2G Agena D | KH-4B 6’, on board a Thorad SLV-2G Agena D space rocket.
The launch took place on Feb. 5, 1969, 9:59 p.m. from Space Launch Complex 3W.
For more information about the launch, click the button.
Thorad SLV-2G Agena D | KH-4B 6
Agency: N/A
Status: Launch Successful
Launch date: Feb. 5, 1969, 9:59 p.m. UTC
Rocket: Thorad SLV-2G Agena D
Launch pad: Space Launch Complex 3W
Location: Vandenberg SFB, CA, USA
...
Latest news about this satellite
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