Key statistics
Satellite PEGASUS R/B at a glance.
Uptime
11863
Days in orbit
Revolutions
≈ 14.3
Per day
Orbit
LEO
Low Earth Orbit
Inclination
69.9
Latest
Satellite identification and parameters
Extended collection of information and parameters for PEGASUS R/B.
Object identification
Identified? True
Debris? False
Object name: PEGASUS R/B
International designator: 1993-026B
Object number (NORAD): 22639
Object ID (CCSDS): 22639
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 100.499 minutes
Inclination: 69.9194 deg
SMA: 7160.346 km
Apoapsis: 827.218 km
Periapsis: 737.204 km
RAAN: 181.2101 deg
Eccentricy: 0.00628554
Argument of periapsis: 171.6542 deg
Mean anomaly: 188.5644 deg
Mean motion: 14.32853383 rev/day
Mean motion (dot): 0.00000202 rev/day2
B* drag term: 0.000093560477 1/REarth
Two-line elements (TLE)
Creation date: Oct. 15, 2025, 6:23 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 15, 2025, 2:14 a.m. UTC
TLE line 0: 0 PEGASUS R/B
TLE line 1: 1 22639U 93026B 25288.09349662 .00000202 00000-0 93560-4 0 9997
TLE line 2: 2 22639 69.9194 181.2101 0062855 171.6542 188.5644 14.32853383 74285
Live tracking on map
Real-time ground track for satellite PEGASUS R/B.
In-orbit conjunctions
A list of the most updated potential collisions computed for object PEGASUS R/B.
Associated space launch
PEGASUS R/B was lifted into orbit during the mission ‘Pegasus | Array of Low Energy X-ray Imaging Sensors (ALEXIS)’, on board a Pegasus space rocket.
The launch took place on April 25, 1993, 1:56 p.m. from Edwards Air Force Base.
For more information about the launch, click the button.
Pegasus | Array of Low Energy X-ray Imaging Sensors (ALEXIS)
Agency: N/A
Status: Launch Successful
Launch date: April 25, 1993, 1:56 p.m. UTC
Rocket: Pegasus
Launch pad: Edwards Air Force Base
Location: Air launch to orbit
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