Key statistics
Satellite DELTA 1 DEB at a glance.
Uptime
18350
Days in orbit
Revolutions
≈ 12.7
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
99.8
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: 1975-052HT
Object number (NORAD): 21599
Object ID (CCSDS): 21599
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 113.175 minutes
Inclination: 99.8236 deg
SMA: 7750.47 km
Apoapsis: 1712.02 km
Periapsis: 1032.649 km
RAAN: 170.1207 deg
Eccentricy: 0.04382772
Argument of periapsis: 79.265 deg
Mean anomaly: 97.7991 deg
Mean motion: 12.72362159 rev/day
Mean motion (dot): 0.00001712 rev/day2
B* drag term: 0.0057677695 1/REarth
Two-line elements (TLE)
Creation date: Aug. 24, 2025, 2:08 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Aug. 23, 2025, 2:27 p.m. UTC
TLE line 0: 0 DELTA 1 DEB
TLE line 1: 1 21599U 75052HT 25235.60211927 .00001712 00000-0 57678-2 0 9996
TLE line 2: 2 21599 99.8236 170.1207 0438277 79.2650 97.7991 12.72362159581456
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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