Key statistics
Satellite TAURUS R/B at a glance.
Uptime
9877
Days in orbit
Revolutions
≈ 14.7
Per day
Orbit
LEO
Low Earth Orbit
Inclination
85.1
Latest
Satellite identification and parameters
Extended collection of information and parameters for TAURUS R/B.
Object identification
Identified? True
Debris? False
Object name: TAURUS R/B
International designator: 1998-055B
Object number (NORAD): 25490
Object ID (CCSDS): 25490
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 97.867 minutes
Inclination: 85.0717 deg
SMA: 7034.776 km
Apoapsis: 666.629 km
Periapsis: 646.654 km
RAAN: 31.598 deg
Eccentricy: 0.00141972
Argument of periapsis: 346.5643 deg
Mean anomaly: 13.5191 deg
Mean motion: 14.71388458 rev/day
Mean motion (dot): 0.00000971 rev/day2
B* drag term: 0.00015271933 1/REarth
Two-line elements (TLE)
Creation date: Oct. 18, 2025, 2:17 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 17, 2025, 5:15 p.m. UTC
TLE line 0: 0 TAURUS R/B
TLE line 1: 1 25490U 98055B 25290.71943377 .00000971 00000-0 15272-3 0 9993
TLE line 2: 2 25490 85.0717 31.5980 0014197 346.5643 13.5191 14.71388458449296
Live tracking on map
Real-time ground track for satellite TAURUS R/B.
In-orbit conjunctions
A list of the most updated potential collisions computed for object TAURUS R/B.
Associated 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.
TAURUS R/B 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
...
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