Key statistics
Satellite USA 141 at a glance.
Uptime
9774
Days in orbit
Revolutions
≈ 14.5
Per day
Orbit
LEO
Low Earth Orbit
Inclination
85.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for USA 141.
Object identification
Identified? True
Debris? False
Object name: USA 141
International designator: 1998-055C
Object number (NORAD): 25615
Object ID (CCSDS): 25615
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 99.522 minutes
Inclination: 84.9843 deg
SMA: 7113.884 km
Apoapsis: 739.809 km
Periapsis: 731.689 km
RAAN: 213.0212 deg
Eccentricy: 0.0005707
Argument of periapsis: 254.9274 deg
Mean anomaly: 105.1295 deg
Mean motion: 14.46913482 rev/day
Mean motion (dot): 0.00000251 rev/day2
B* drag term: 0.000063649 1/REarth
Two-line elements (TLE)
Creation date: July 6, 2025, 10:26 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 6, 2025, 2:15 p.m. UTC
TLE line 0: 0 USA 141
TLE line 1: 1 25615U 98055C 25187.59390088 .00000251 00000-0 63649-4 0 9991
TLE line 2: 2 25615 84.9843 213.0212 0005707 254.9274 105.1295 14.46913482324059
Live tracking on map
Real-time ground track for satellite USA 141.
In-orbit conjunctions
There are no conjunctions computed for USA 141, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
The STEX (Space Technology Experiments) satellite carried 29 new technologies intended to result in lower cost and higher performance spacecraft for future missions.
USA 141 was lifted into orbit during the mission ‘Minotaur | NROL-8’, on board a Minotaur space rocket.
The launch took place on Oct. 3, 1998, 10:04 a.m. from Space Launch Complex 576E.
For more information about the launch, click the button.
Minotaur | NROL-8
Agency: N/A
Status: Launch Successful
Launch date: Oct. 3, 1998, 10:04 a.m. UTC
Rocket: Minotaur
Launch pad: Space Launch Complex 576E
Location: Vandenberg SFB, CA, USA
...
Latest news about this satellite
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