Key statistics
Satellite DELTA 1 DEB at a glance.
Uptime
18390
Days in orbit
Revolutions
≈ 13.3
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: 1975-052EB
Object number (NORAD): 21443
Object ID (CCSDS): 21443
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 108.135 minutes
Inclination: 99.7983 deg
SMA: 7518.593 km
Apoapsis: 1191.762 km
Periapsis: 1089.154 km
RAAN: 65.6398 deg
Eccentricy: 0.00682362
Argument of periapsis: 178.26 deg
Mean anomaly: 288.173 deg
Mean motion: 13.31673911 rev/day
Mean motion (dot): 0.00000101 rev/day2
B* drag term: 0.00029391581 1/REarth
Two-line elements (TLE)
Creation date: Oct. 16, 2025, 2:37 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 15, 2025, 7:54 p.m. UTC
TLE line 0: 0 DELTA 1 DEB
TLE line 1: 1 21443U 75052EB 25288.82984987 .00000101 00000-0 29392-3 0 9993
TLE line 2: 2 21443 99.7983 65.6398 0068236 178.2600 288.1730 13.31673911674110
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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