Key statistics
Satellite DELTA 1 DEB at a glance.
Uptime
17451
Days in orbit
Revolutions
≈ 14.1
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
99.0
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: 1978-026E
Object number (NORAD): 12165
Object ID (CCSDS): 12165
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 102.054 minutes
Inclination: 99.0138 deg
SMA: 7234.014 km
Apoapsis: 887.459 km
Periapsis: 824.3 km
RAAN: 16.6289 deg
Eccentricy: 0.00436539
Argument of periapsis: 16.3419 deg
Mean anomaly: 95.503 deg
Mean motion: 14.11021771 rev/day
Mean motion (dot): 0.00000119 rev/day2
B* drag term: 0.000090783987 1/REarth
Two-line elements (TLE)
Creation date: Dec. 14, 2025, 3:07 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 13, 2025, 4:46 p.m. UTC
TLE line 0: 0 DELTA 1 DEB
TLE line 1: 1 12165U 78026E 25347.69889083 .00000119 00000-0 90784-4 0 9993
TLE line 2: 2 12165 99.0138 16.6289 0043654 16.3419 95.5030 14.11021771 93677
Live tracking on map
Real-time ground track for satellite DELTA 1 DEB.
Associated space launch
Earth observation satellite
DELTA 1 DEB was lifted into orbit during the mission ‘Delta 2910 | Landsat 3’, on board a Delta 2910 space rocket.
The launch took place on March 5, 1978, 5:54 p.m. from Space Launch Complex 2W.
For more information about the launch, click the button.
Delta 2910 | Landsat 3
Agency: N/A
Status: Launch Successful
Launch date: March 5, 1978, 5:54 p.m. UTC
Rocket: Delta 2910
Launch pad: Space Launch Complex 2W
Location: Vandenberg SFB, CA, USA
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