Key statistics
Satellite DELTA 1 DEB at a glance.
Uptime
18350
Days in orbit
Revolutions
≈ 12.8
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
99.6
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: 1975-052HL
Object number (NORAD): 21566
Object ID (CCSDS): 21566
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 112.165 minutes
Inclination: 99.603 deg
SMA: 7704.293 km
Apoapsis: 1576.792 km
Periapsis: 1075.525 km
RAAN: 291.9314 deg
Eccentricy: 0.0325317
Argument of periapsis: 51.8767 deg
Mean anomaly: 339.3312 deg
Mean motion: 12.83818236 rev/day
Mean motion (dot): 0.00000114 rev/day2
B* drag term: 0.00049131188 1/REarth
Two-line elements (TLE)
Creation date: Sept. 6, 2025, 10:23 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 6, 2025, 1:15 a.m. UTC
TLE line 0: 0 DELTA 1 DEB
TLE line 1: 1 21566U 75052HL 25249.05219772 .00000114 00000-0 49131-3 0 9991
TLE line 2: 2 21566 99.6030 291.9314 0325317 51.8767 339.3312 12.83818236607204
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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