Key statistics
Satellite GALEX at a glance.
Uptime
8169
Days in orbit
Revolutions
≈ 14.7
Per day
Orbit
LEO
Low Earth Orbit
Inclination
29.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for GALEX.
Object identification
Identified? True
Debris? False
Object name: GALEX
International designator: 2003-017A
Object number (NORAD): 27783
Object ID (CCSDS): 27783
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 98.257 minutes
Inclination: 28.9969 deg
SMA: 7053.489 km
Apoapsis: 677.678 km
Periapsis: 673.03 km
RAAN: 70.7506 deg
Eccentricy: 0.00032946
Argument of periapsis: 180.2992 deg
Mean anomaly: 179.7595 deg
Mean motion: 14.65537021 rev/day
Mean motion (dot): 0.00001114 rev/day2
B* drag term: 0.00018180685 1/REarth
Two-line elements (TLE)
Creation date: Sept. 8, 2025, 3:16 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 7, 2025, 8:45 p.m. UTC
TLE line 0: 0 GALEX
TLE line 1: 1 27783U 03017A 25250.86483443 .00001114 00000-0 18181-3 0 9991
TLE line 2: 2 27783 28.9969 70.7506 0003295 180.2992 179.7595 14.65537021195751
Live tracking on map
Real-time ground track for satellite GALEX.
In-orbit conjunctions
A list of the most updated potential collisions computed for object GALEX.
Associated space launch
GALEX was lifted into orbit during the mission ‘Pegasus XL | Galaxy Evolution Explorer (GALEX)’, on board a Pegasus XL space rocket.
The launch took place on April 28, 2003, 11:59 a.m. from Cape Canaveral.
For more information about the launch, click the button.
Pegasus XL | Galaxy Evolution Explorer (GALEX)
Agency: N/A
Status: Launch Successful
Launch date: April 28, 2003, 11:59 a.m. UTC
Rocket: Pegasus XL
Launch pad: Cape Canaveral
Location: Air launch to orbit
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