Key statistics
Satellite ORSTED at a glance.
Uptime
9735
Days in orbit
Revolutions
≈ 14.5
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
96.5
Latest
Satellite identification and parameters
Extended collection of information and parameters for ORSTED.
Object identification
Identified? True
Debris? False
Object name: ORSTED
International designator: 1999-008B
Object number (NORAD): 25635
Object ID (CCSDS): 25635
Country: DENMARK (DEN)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 99.216 minutes
Inclination: 96.4636 deg
SMA: 7099.284 km
Apoapsis: 814.008 km
Periapsis: 628.29 km
RAAN: 248.649 deg
Eccentricy: 0.01308003
Argument of periapsis: 243.4798 deg
Mean anomaly: 115.2942 deg
Mean motion: 14.51379395 rev/day
Mean motion (dot): 0.00001045 rev/day2
B* drag term: 0.00024219901 1/REarth
Two-line elements (TLE)
Creation date: Oct. 18, 2025, 2:17 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 17, 2025, 9:20 p.m. UTC
TLE line 0: 0 ORSTED
TLE line 1: 1 25635U 99008B 25290.88933962 .00001045 00000-0 24220-3 0 9996
TLE line 2: 2 25635 96.4636 248.6490 0130800 243.4798 115.2942 14.51379395406819
Live tracking on map
Real-time ground track for satellite ORSTED.
In-orbit conjunctions
A list of the most updated potential collisions computed for object ORSTED.
Associated space launch
ARGOS (Advanced Research & Global Observation Satellite) is a testbed and demonstration program for advanced remote sensing technologies for the US Air Force's Space Test Program (STP). ARGOS's primary objective is to fly and operate advanced payloads that include two technology demonstrations and seven experiment payloads for global and celestial observation. ARGOS also has a goal of three years of on orbit operations to demonstrate and collect science data for the Earth's global environment and top priority military space programs.
ORSTED was lifted into orbit during the mission ‘Delta II | ARGOS’, on board a Delta II space rocket.
The launch took place on Feb. 23, 1999, 10:29 a.m. from Space Launch Complex 2W.
For more information about the launch, click the button.
Delta II | ARGOS
Agency: N/A
Status: Launch Successful
Launch date: Feb. 23, 1999, 10:29 a.m. UTC
Rocket: Delta II
Launch pad: Space Launch Complex 2W
Location: Vandenberg SFB, CA, USA
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