Key statistics
Satellite USA 25 at a glance.
Uptime
13875
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: 104.306 minutes
Inclination: 63.2921 deg
SMA: 7340.084 km
Apoapsis: 1570.492 km
Periapsis: 353.406 km
RAAN: 41.7506 deg
Eccentricy: 0.0829068
Argument of periapsis: 95.3544 deg
Mean anomaly: 274.2549 deg
Mean motion: 13.80547001 rev/day
Mean motion (dot): 0.00014841 rev/day2
B* drag term: 0.00077362 1/REarth
Two-line elements (TLE)
Creation date: May 10, 2025, 2:32 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: May 9, 2025, 7:31 p.m. UTC
TLE line 0: 0 USA 25
TLE line 1: 1 18025U 87043H 25129.81363890 .00014841 00000-0 77362-3 0 9991
TLE line 2: 2 18025 63.2921 41.7506 0829068 95.3544 274.2549 13.80547001295971
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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