Key statistics
Satellite DMSP 5D-2 F11 (USA 73) at a glance.
Uptime
12273
Days in orbit
Revolutions
≈ 14.2
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.7
Latest
Satellite identification and parameters
Extended collection of information and parameters for DMSP 5D-2 F11 (USA 73).
Object identification
Identified? True
Debris? False
Object name: DMSP 5D-2 F11 (USA 73)
International designator: 1991-082A
Object number (NORAD): 21798
Object ID (CCSDS): 21798
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 101.601 minutes
Inclination: 98.7271 deg
SMA: 7212.582 km
Apoapsis: 843.724 km
Periapsis: 825.171 km
RAAN: 215.7702 deg
Eccentricy: 0.0012861
Argument of periapsis: 184.3156 deg
Mean anomaly: 175.791 deg
Mean motion: 14.17315624 rev/day
Mean motion (dot): 0.00000067 rev/day2
B* drag term: 0.000054601 1/REarth
Two-line elements (TLE)
Creation date: July 4, 2025, 6:39 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 4, 2025, 2:38 p.m. UTC
TLE line 0: 0 DMSP 5D-2 F11 (USA 73)
TLE line 1: 1 21798U 91082A 25185.61033162 .00000067 00000-0 54601-4 0 9993
TLE line 2: 2 21798 98.7271 215.7702 0012861 184.3156 175.7910 14.17315624735899
Live tracking on map
Real-time ground track for satellite DMSP 5D-2 F11 (USA 73).
In-orbit conjunctions
A list of the most updated potential collisions computed for object DMSP 5D-2 F11 (USA 73).
Associated space launch
Military meteorological satellite
DMSP 5D-2 F11 (USA 73) was lifted into orbit during the mission ‘Atlas E | DMSP-5D2 F11’, on board a Atlas E space rocket.
The launch took place on Nov. 28, 1991, 1:23 p.m. from Space Launch Complex 3W.
For more information about the launch, click the button.
Atlas E | DMSP-5D2 F11
Agency: N/A
Status: Launch Successful
Launch date: Nov. 28, 1991, 1:23 p.m. UTC
Rocket: Atlas E
Launch pad: Space Launch Complex 3W
Location: Vandenberg SFB, CA, USA
...
Latest news about this satellite
There are no fresh news available about this satellite. Check back as we update our databases every day.
Newsletter sign-up
Weekly statistics, charts and insights to help you stay on top of the space industry.
