Key statistics
Satellite DELTA 1 DEB at a glance.
Uptime
18447
Days in orbit
Revolutions
≈ 12.2
Per day
Orbit
MEO
Medium Earth Orbit
Inclination
99.7
Latest
Satellite identification and parameters
Extended collection of information and parameters for DELTA 1 DEB.
Object identification
Identified? True
Debris? True
Object name: DELTA 1 DEB
International designator: 1975-052FN
Object number (NORAD): 21493
Object ID (CCSDS): 21493
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 117.868 minutes
Inclination: 99.6936 deg
SMA: 7963.261 km
Apoapsis: 2174.834 km
Periapsis: 995.418 km
RAAN: 121.2352 deg
Eccentricy: 0.07405357
Argument of periapsis: 51.0063 deg
Mean anomaly: 94.5783 deg
Mean motion: 12.2170499 rev/day
Mean motion (dot): -0.00006174 rev/day2
B* drag term: -0.024109641 1/REarth
Two-line elements (TLE)
Creation date: Dec. 11, 2025, 3:54 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 10, 2025, 8:41 p.m. UTC
TLE line 0: 0 DELTA 1 DEB
TLE line 1: 1 21493U 75052FN 25344.86209041 -.00006174 00000-0 -24110-1 0 9995
TLE line 2: 2 21493 99.6936 121.2352 0740536 51.0063 94.5783 12.21704990529400
Live tracking on map
Real-time ground track for satellite DELTA 1 DEB.
Associated space launch
Experimental meteorological satellite
DELTA 1 DEB was lifted into orbit during the mission ‘Delta 2910 | Nimbus 6’, on board a Delta 2910 space rocket.
The launch took place on June 12, 1975, 8:12 a.m. from Space Launch Complex 2W.
For more information about the launch, click the button.
Delta 2910 | Nimbus 6
Agency: N/A
Status: Launch Successful
Launch date: June 12, 1975, 8:12 a.m. UTC
Rocket: Delta 2910
Launch pad: Space Launch Complex 2W
Location: Vandenberg SFB, CA, USA
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