Key statistics
Satellite OPS 6026 (DMSP 4A F1) at a glance.
Uptime
21539
Days in orbit
Revolutions
≈ 14.4
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.3
Latest
Satellite identification and parameters
Extended collection of information and parameters for OPS 6026 (DMSP 4A F1).
Object identification
Identified? True
Debris? False
Object name: OPS 6026 (DMSP 4A F1)
International designator: 1966-082A
Object number (NORAD): 2418
Object ID (CCSDS): 2418
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 99.75 minutes
Inclination: 98.3038 deg
SMA: 7124.74 km
Apoapsis: 829.283 km
Periapsis: 663.928 km
RAAN: 41.4292 deg
Eccentricy: 0.01160425
Argument of periapsis: 170.6045 deg
Mean anomaly: 189.7355 deg
Mean motion: 14.43607719 rev/day
Mean motion (dot): 0.00000937 rev/day2
B* drag term: 0.00026727185 1/REarth
Two-line elements (TLE)
Creation date: Sept. 4, 2025, 10:13 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 4, 2025, 12:09 a.m. UTC
TLE line 0: 0 OPS 6026 (DMSP 4A F1)
TLE line 1: 1 02418U 66082A 25247.00668267 .00000937 00000-0 26727-3 0 9998
TLE line 2: 2 02418 98.3038 41.4292 0116043 170.6045 189.7355 14.43607719 70993
Live tracking on map
Real-time ground track for satellite OPS 6026 (DMSP 4A F1).
In-orbit conjunctions
There are no conjunctions computed for OPS 6026 (DMSP 4A F1), at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
DSAP-4A (Defense Satellite Application Program Block 4A) was the fourth version of the military meteorological satellites of the Defense Meteorological Satellite Program.
OPS 6026 (DMSP 4A F1) was lifted into orbit during the mission ‘Thor Burner 2 | DSAP-4A F1’, on board a Thor Burner 2 space rocket.
The launch took place on Sept. 16, 1966, 4:36 a.m. from Space Launch Complex 10W.
For more information about the launch, click the button.
Thor Burner 2 | DSAP-4A F1
Agency: N/A
Status: Launch Successful
Launch date: Sept. 16, 1966, 4:36 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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