Key statistics
Satellite DELTA 1 DEB at a glance.
Uptime
18287
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: 113.19 minutes
Inclination: 99.8275 deg
SMA: 7751.123 km
Apoapsis: 1703.012 km
Periapsis: 1042.964 km
RAAN: 125.3222 deg
Eccentricy: 0.0425776
Argument of periapsis: 192.182 deg
Mean anomaly: 346.616 deg
Mean motion: 12.72201306 rev/day
Mean motion (dot): 0.00000868 rev/day2
B* drag term: 0.0030613 1/REarth
Two-line elements (TLE)
Creation date: July 2, 2025, 10:26 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 2, 2025, 2:58 p.m. UTC
TLE line 0: 0 DELTA 1 DEB
TLE line 1: 1 21599U 75052HT 25183.62376262 .00000868 00000-0 30613-2 0 9995
TLE line 2: 2 21599 99.8275 125.3222 0425776 192.1820 346.6160 12.72201306574847
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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