Key statistics
Satellite ALEXIS at a glance.
Uptime
11865
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: 100.449 minutes
Inclination: 69.9186 deg
SMA: 7157.99 km
Apoapsis: 820.557 km
Periapsis: 739.153 km
RAAN: 127.4861 deg
Eccentricy: 0.00568624
Argument of periapsis: 130.7369 deg
Mean anomaly: 229.8714 deg
Mean motion: 14.33560821 rev/day
Mean motion (dot): 0.00000259 rev/day2
B* drag term: 0.00011283281 1/REarth
Two-line elements (TLE)
Creation date: Oct. 19, 2025, 2:20 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 18, 2025, 9:59 p.m. UTC
TLE line 0: 0 ALEXIS
TLE line 1: 1 22638U 93026A 25291.91627264 .00000259 00000-0 11283-3 0 9991
TLE line 2: 2 22638 69.9186 127.4861 0056862 130.7369 229.8714 14.33560821 75588
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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