Key statistics
Satellite OPS 4078 (DMSP 4B F2) at a glance.
Uptime
20766
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: 100.832 minutes
Inclination: 98.5392 deg
SMA: 7176.182 km
Apoapsis: 820.232 km
Periapsis: 775.861 km
RAAN: 6.2749 deg
Eccentricy: 0.00309158
Argument of periapsis: 98.8753 deg
Mean anomaly: 261.5931 deg
Mean motion: 14.28113217 rev/day
Mean motion (dot): 0.00000272 rev/day2
B* drag term: 0.00012614089 1/REarth
Two-line elements (TLE)
Creation date: Aug. 31, 2025, 2:26 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Aug. 30, 2025, 9:41 p.m. UTC
TLE line 0: 0 OPS 4078 (DMSP 4B F2)
TLE line 1: 1 03510U 68092A 25242.90373639 .00000272 00000-0 12614-3 0 9997
TLE line 2: 2 03510 98.5392 6.2749 0030916 98.8753 261.5931 14.28113217955819
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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