Key statistics
Satellite USA 25 at a glance.
Uptime
13995
Days in orbit
Revolutions
≈ 13.8
Per day
Orbit
LEO
Low Earth Orbit
Inclination
63.3
Latest
Satellite identification and parameters
Extended collection of information and parameters for USA 25.
Object identification
Identified? True
Debris? False
Object name: USA 25
International designator: 1987-043H
Object number (NORAD): 18025
Object ID (CCSDS): 18025
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 104.068 minutes
Inclination: 63.2889 deg
SMA: 7328.9 km
Apoapsis: 1547.644 km
Periapsis: 353.887 km
RAAN: 67.7213 deg
Eccentricy: 0.08144176
Argument of periapsis: 97.8062 deg
Mean anomaly: 271.6137 deg
Mean motion: 13.83708325 rev/day
Mean motion (dot): 0.00022988 rev/day2
B* drag term: 0.0011854359 1/REarth
Two-line elements (TLE)
Creation date: Sept. 7, 2025, 3:09 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 6, 2025, 8:18 p.m. UTC
TLE line 0: 0 USA 25
TLE line 1: 1 18025U 87043H 25249.84603718 .00022988 00000-0 11854-2 0 9997
TLE line 2: 2 18025 63.2889 67.7213 0814418 97.8062 271.6137 13.83708325312562
Live tracking on map
Real-time ground track for satellite USA 25.
In-orbit conjunctions
There are no conjunctions computed for USA 25, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
The Parcae satellites were passive ELINT satellites. MSD satellites were dispensers of triplets of ocean surveillance satellites.
USA 25 was lifted into orbit during the mission ‘Atlas H | Parcae 9A,B,C & MSD 9’, on board a Atlas H space rocket.
The launch took place on May 15, 1987, 3:45 p.m. from Space Launch Complex 3E.
For more information about the launch, click the button.
Atlas H | Parcae 9A,B,C & MSD 9
Agency: N/A
Status: Launch Successful
Launch date: May 15, 1987, 3:45 p.m. UTC
Rocket: Atlas H
Launch pad: Space Launch Complex 3E
Location: Vandenberg SFB, CA, USA
...
Latest news about this satellite
There are no fresh news available about this satellite. Check back as we update our databases every day.
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