Key statistics
Satellite OPS 0054 (DMSP 5A F1) at a glance.
Uptime
20298
Days in orbit
Revolutions
≈ 14.3
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
99.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for OPS 0054 (DMSP 5A F1).
Object identification
Identified? True
Debris? False
Object name: OPS 0054 (DMSP 5A F1)
International designator: 1970-012A
Object number (NORAD): 4331
Object ID (CCSDS): 4331
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 100.39 minutes
Inclination: 98.9873 deg
SMA: 7155.172 km
Apoapsis: 818.765 km
Periapsis: 735.31 km
RAAN: 52.907 deg
Eccentricy: 0.00583179
Argument of periapsis: 75.3906 deg
Mean anomaly: 285.3734 deg
Mean motion: 14.34407776 rev/day
Mean motion (dot): 0.00000351 rev/day2
B* drag term: 0.00013872106 1/REarth
Two-line elements (TLE)
Creation date: Sept. 8, 2025, 3:16 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 7, 2025, 10:23 p.m. UTC
TLE line 0: 0 OPS 0054 (DMSP 5A F1)
TLE line 1: 1 04331U 70012A 25250.93304462 .00000351 00000-0 13872-3 0 9999
TLE line 2: 2 04331 98.9873 52.9070 0058318 75.3906 285.3734 14.34407776896711
Live tracking on map
Real-time ground track for satellite OPS 0054 (DMSP 5A F1).
In-orbit conjunctions
There are no conjunctions computed for OPS 0054 (DMSP 5A F1), at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
Military meteorological satellite
OPS 0054 (DMSP 5A F1) was lifted into orbit during the mission ‘Thor Burner 2 | DSAP-5A F1’, on board a Thor Burner 2 space rocket.
The launch took place on Feb. 11, 1970, 8:40 a.m. from Space Launch Complex 10W.
For more information about the launch, click the button.
Thor Burner 2 | DSAP-5A F1
Agency: N/A
Status: Launch Successful
Launch date: Feb. 11, 1970, 8:40 a.m. UTC
Rocket: Thor Burner 2
Launch pad: Space Launch Complex 10W
Location: Vandenberg SFB, CA, USA
...
Latest news about this satellite
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