Key statistics
Satellite OPS 4078 (DMSP 4B F2) at a glance.
Uptime
20709
Days in orbit
Revolutions
≈ 14.3
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.5
Latest
Satellite identification and parameters
Extended collection of information and parameters for OPS 4078 (DMSP 4B F2).
Object identification
Identified? True
Debris? False
Object name: OPS 4078 (DMSP 4B F2)
International designator: 1968-092A
Object number (NORAD): 3510
Object ID (CCSDS): 3510
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 100.834 minutes
Inclination: 98.5325 deg
SMA: 7176.249 km
Apoapsis: 818.637 km
Periapsis: 777.591 km
RAAN: 309.9786 deg
Eccentricy: 0.0028599
Argument of periapsis: 267.8156 deg
Mean anomaly: 91.975 deg
Mean motion: 14.28093113 rev/day
Mean motion (dot): 0.00000094 rev/day2
B* drag term: 0.000055078 1/REarth
Two-line elements (TLE)
Creation date: July 4, 2025, 6:39 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 4, 2025, 7:29 a.m. UTC
TLE line 0: 0 OPS 4078 (DMSP 4B F2)
TLE line 1: 1 03510U 68092A 25185.31183650 .00000094 00000-0 55078-4 0 9994
TLE line 2: 2 03510 98.5325 309.9786 0028599 267.8156 91.9750 14.28093113947590
Live tracking on map
Real-time ground track for satellite OPS 4078 (DMSP 4B F2).
In-orbit conjunctions
There are no conjunctions computed for OPS 4078 (DMSP 4B F2), at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
DSAP-4B (Defense Satellite Application Program Block 4B) was the sixth version of the military meteorological satellites of the Defense Meteorological Satellite Program.
OPS 4078 (DMSP 4B F2) was lifted into orbit during the mission ‘Thor Burner 2 | DSAP-4B F2’, on board a Thor Burner 2 space rocket.
The launch took place on Oct. 23, 1968, 4:34 a.m. from Space Launch Complex 10W.
For more information about the launch, click the button.
Thor Burner 2 | DSAP-4B F2
Agency: N/A
Status: Launch Successful
Launch date: Oct. 23, 1968, 4:34 a.m. UTC
Rocket: Thor Burner 2
Launch pad: Space Launch Complex 10W
Location: Vandenberg SFB, CA, USA
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Latest news about this satellite
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