Key statistics
Satellite FUSE 1 at a glance.
Uptime
9564
Days in orbit
Revolutions
≈ 14.4
Per day
Orbit
LEO
Low Earth Orbit
Inclination
25.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for FUSE 1.
Object identification
Identified? True
Debris? False
Object name: FUSE 1
International designator: 1999-035A
Object number (NORAD): 25791
Object ID (CCSDS): 25791
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 99.707 minutes
Inclination: 24.9858 deg
SMA: 7122.674 km
Apoapsis: 751.585 km
Periapsis: 737.494 km
RAAN: 1.5938 deg
Eccentricy: 0.00098921
Argument of periapsis: 251.1582 deg
Mean anomaly: 108.7853 deg
Mean motion: 14.44235879 rev/day
Mean motion (dot): 0.00000601 rev/day2
B* drag term: 0.00012006308 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, 2:57 p.m. UTC
TLE line 0: 0 FUSE 1
TLE line 1: 1 25791U 99035A 25241.62303423 .00000601 00000-0 12006-3 0 9996
TLE line 2: 2 25791 24.9858 1.5938 0009892 251.1582 108.7853 14.44235879381764
Live tracking on map
Real-time ground track for satellite FUSE 1.
In-orbit conjunctions
A list of the most updated potential collisions computed for object FUSE 1.
Associated space launch
FUSE (Far Ultraviolet Spectroscopic Explorer) represented the next generation, high-orbit, ultraviolet space observatory covering the wavelength range of 90.5-119.5 nm. The primary objective of FUSE was to use high-resolution spectroscopy at far ultraviolet wavelengths to study the origin and evolution of the lightest elements (hydrogen and deuterium) created shortly after the Big Bang, and the forces and processes involved in the evolution of galaxies, stars and planetary systems.
FUSE 1 was lifted into orbit during the mission ‘Delta II | FUSE’, on board a Delta II space rocket.
The launch took place on June 24, 1999, 3:44 p.m. from Space Launch Complex 17A.
For more information about the launch, click the button.
Delta II | FUSE
Agency: N/A
Status: Launch Successful
Launch date: June 24, 1999, 3:44 p.m. UTC
Rocket: Delta II
Launch pad: Space Launch Complex 17A
Location: Cape Canaveral SFS, FL, USA
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