Key statistics
Satellite OPS 8364 (DMSP 4) at a glance.
Uptime
18893
Days in orbit
Revolutions
≈ 14.3
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.6
Latest
Satellite identification and parameters
Extended collection of information and parameters for OPS 8364 (DMSP 4).
Object identification
Identified? True
Debris? False
Object name: OPS 8364 (DMSP 4)
International designator: 1973-054A
Object number (NORAD): 6787
Object ID (CCSDS): 6787
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 100.462 minutes
Inclination: 98.6212 deg
SMA: 7158.586 km
Apoapsis: 799.241 km
Periapsis: 761.661 km
RAAN: 353.2149 deg
Eccentricy: 0.0026248
Argument of periapsis: 151.1932 deg
Mean anomaly: 209.0707 deg
Mean motion: 14.33381773 rev/day
Mean motion (dot): 0.00000385 rev/day2
B* drag term: 0.00015515 1/REarth
Two-line elements (TLE)
Creation date: May 8, 2025, 3:01 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: May 7, 2025, 2:58 p.m. UTC
TLE line 0: 0 OPS 8364 (DMSP 4)
TLE line 1: 1 06787U 73054A 25127.62387136 .00000385 00000-0 15515-3 0 9996
TLE line 2: 2 06787 98.6212 353.2149 0026248 151.1932 209.0707 14.33381773693664
Live tracking on map
Real-time ground track for satellite OPS 8364 (DMSP 4).
In-orbit conjunctions
There are no conjunctions computed for OPS 8364 (DMSP 4), 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 8364 (DMSP 4) was lifted into orbit during the mission ‘Thor Burner 2A | DMSP-5B F4’, on board a Thor Burner 2A space rocket.
The launch took place on Aug. 17, 1973, 4:49 a.m. from Space Launch Complex 10W.
For more information about the launch, click the button.
Thor Burner 2A | DMSP-5B F4
Agency: N/A
Status: Launch Successful
Launch date: Aug. 17, 1973, 4:49 a.m. UTC
Rocket: Thor Burner 2A
Launch pad: Space Launch Complex 10W
Location: Vandenberg SFB, CA, USA
...
Latest news about this satellite
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