Key statistics
Satellite PEGASUS R/B at a glance.
Uptime
11921
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: 100.496 minutes
Inclination: 69.9209 deg
SMA: 7160.198 km
Apoapsis: 825.143 km
Periapsis: 738.983 km
RAAN: 45.5594 deg
Eccentricy: 0.00601661
Argument of periapsis: 87.3661 deg
Mean anomaly: 273.4349 deg
Mean motion: 14.32897868 rev/day
Mean motion (dot): 0.00000215 rev/day2
B* drag term: 0.000098067352 1/REarth
Two-line elements (TLE)
Creation date: Dec. 14, 2025, 3:07 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 13, 2025, 1:41 p.m. UTC
TLE line 0: 0 PEGASUS R/B
TLE line 1: 1 22639U 93026B 25347.57024571 .00000215 00000-0 98067-4 0 9996
TLE line 2: 2 22639 69.9209 45.5594 0060166 87.3661 273.4349 14.32897868 82807
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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