Key statistics
Satellite OPS 6381 (SSU 1) at a glance.
Uptime
18457
Days in orbit
Revolutions
≈ 12.7
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
95.1
Latest
Satellite identification and parameters
Extended collection of information and parameters for OPS 6381 (SSU 1).
Object identification
Identified? True
Debris? False
Object name: OPS 6381 (SSU 1)
International designator: 1975-051C
Object number (NORAD): 7937
Object ID (CCSDS): 7937
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 113.541 minutes
Inclination: 95.0891 deg
SMA: 7767.161 km
Apoapsis: 1395.071 km
Periapsis: 1382.981 km
RAAN: 114.5028 deg
Eccentricy: 0.00077823
Argument of periapsis: 69.3417 deg
Mean anomaly: 305.7908 deg
Mean motion: 12.68262975 rev/day
Mean motion (dot): -0.00000021 rev/day2
B* drag term: -0.000055092405 1/REarth
Two-line elements (TLE)
Creation date: Dec. 18, 2025, 8:02 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 18, 2025, 8:06 a.m. UTC
TLE line 0: 0 OPS 6381 (SSU 1)
TLE line 1: 1 07937U 75051C 25352.33765720 -.00000021 00000-0 -55092-4 0 9994
TLE line 2: 2 07937 95.0891 114.5028 0007782 69.3417 305.7908 12.68262975338458
Live tracking on map
Real-time ground track for satellite OPS 6381 (SSU 1).
In-orbit conjunctions
There are no conjunctions computed for OPS 6381 (SSU 1), at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
Large reconnaissance satellite equipped with four return capsules.
OPS 6381 (SSU 1) was lifted into orbit during the mission ‘Titan IIID | KH-9 10’, on board a Titan IIID space rocket.
The launch took place on June 8, 1975, 6:30 p.m. from Space Launch Complex 4E.
For more information about the launch, click the button.
Titan IIID | KH-9 10
Agency: N/A
Status: Launch Successful
Launch date: June 8, 1975, 6:30 p.m. UTC
Rocket: Titan IIID
Launch pad: Space Launch Complex 4E
Location: Vandenberg SFB, CA, USA
...
Latest news about this satellite
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