Key statistics
Satellite ALEXIS at a glance.
Uptime
11920
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 ALEXIS.
Object identification
Identified? True
Debris? False
Object name: ALEXIS
International designator: 1993-026A
Object number (NORAD): 22638
Object ID (CCSDS): 22638
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 100.447 minutes
Inclination: 69.9217 deg
SMA: 7157.877 km
Apoapsis: 820.283 km
Periapsis: 739.201 km
RAAN: 3.3848 deg
Eccentricy: 0.00566383
Argument of periapsis: 52.4286 deg
Mean anomaly: 308.1964 deg
Mean motion: 14.3359476 rev/day
Mean motion (dot): 0.00000224 rev/day2
B* drag term: 0.00010007804 1/REarth
Two-line elements (TLE)
Creation date: Dec. 12, 2025, 10:14 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 12, 2025, 6:29 a.m. UTC
TLE line 0: 0 ALEXIS
TLE line 1: 1 22638U 93026A 25346.27024166 .00000224 00000-0 10008-3 0 9999
TLE line 2: 2 22638 69.9217 3.3848 0056638 52.4286 308.1964 14.33594760 83372
Live tracking on map
Real-time ground track for satellite ALEXIS.
In-orbit conjunctions
A list of the most updated potential collisions computed for object ALEXIS.
Associated space launch
ALEXIS 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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