Key statistics
Satellite HST at a glance.
Uptime
12884
Days in orbit
Revolutions
≈ 15.3
Per day
Orbit
LEO
Low Earth Orbit
Inclination
28.5
Latest
Satellite identification and parameters
Extended collection of information and parameters for HST.
Object identification
Identified? True
Debris? False
Object name: HST
International designator: 1990-037B
Object number (NORAD): 20580
Object ID (CCSDS): 20580
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 94.381 minutes
Inclination: 28.4678 deg
SMA: 6866.71 km
Apoapsis: 489.758 km
Periapsis: 487.392 km
RAAN: 100.6954 deg
Eccentricy: 0.0001723
Argument of periapsis: 223.6882 deg
Mean anomaly: 136.3576 deg
Mean motion: 15.25737045 rev/day
Mean motion (dot): 0.00006847 rev/day2
B* drag term: 0.00025257 1/REarth
Two-line elements (TLE)
Creation date: Aug. 1, 2025, 7:30 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Aug. 1, 2025, 1:18 a.m. UTC
TLE line 0: 0 HST
TLE line 1: 1 20580U 90037B 25213.05470067 .00006847 00000-0 25257-3 0 9995
TLE line 2: 2 20580 28.4678 100.6954 0001723 223.6882 136.3576 15.25737045739549
Live tracking on map
Real-time ground track for satellite HST.
In-orbit conjunctions
There are no conjunctions computed for HST, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
STS-31 was the thirty-fifth mission of the space shuttle program. Discovery's tenth mission deployed the Hubble Space Telescope.
HST was lifted into orbit during the mission ‘Space Shuttle Discovery / OV-103 | STS-31 (Hubble)’, on board a Space Shuttle space rocket.
The launch took place on April 24, 1990, 12:33 p.m. from Launch Complex 39B.
For more information about the launch, click the button.
Space Shuttle Discovery / OV-103 | STS-31 (Hubble)
Agency: N/A
Status: Launch Successful
Launch date: April 24, 1990, 12:33 p.m. UTC
Rocket: Space Shuttle
Launch pad: Launch Complex 39B
Location: Kennedy Space Center, FL, USA
...
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