Key statistics
Satellite PEGASUS R/B at a glance.
Uptime
11815
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: 100.501 minutes
Inclination: 69.9189 deg
SMA: 7160.444 km
Apoapsis: 829.413 km
Periapsis: 735.205 km
RAAN: 287.407 deg
Eccentricy: 0.00657832
Argument of periapsis: 234.3487 deg
Mean anomaly: 125.1501 deg
Mean motion: 14.32823929 rev/day
Mean motion (dot): 0.00000161 rev/day2
B* drag term: 0.000078943194 1/REarth
Two-line elements (TLE)
Creation date: Aug. 30, 2025, 3:38 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Aug. 29, 2025, 12:43 p.m. UTC
TLE line 0: 0 PEGASUS R/B
TLE line 1: 1 22639U 93026B 25241.53002655 .00000161 00000-0 78943-4 0 9995
TLE line 2: 2 22639 69.9189 287.4070 0065783 234.3487 125.1501 14.32823929 67612
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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