Key statistics
Satellite DELTA 1 DEB at a glance.
Uptime
17393
Days in orbit
Revolutions
≈ 14.4
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
99.1
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: 1978-026ET
Object number (NORAD): 12427
Object ID (CCSDS): 12427
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 99.842 minutes
Inclination: 99.1483 deg
SMA: 7129.097 km
Apoapsis: 823.71 km
Periapsis: 678.213 km
RAAN: 91.8536 deg
Eccentricy: 0.01020445
Argument of periapsis: 313.825 deg
Mean anomaly: 198.7664 deg
Mean motion: 14.42284672 rev/day
Mean motion (dot): 0.00004508 rev/day2
B* drag term: 0.0012981242 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, 10:26 p.m. UTC
TLE line 0: 0 DELTA 1 DEB
TLE line 1: 1 12427U 78026ET 25288.93501378 .00004508 00000-0 12981-2 0 9990
TLE line 2: 2 12427 99.1483 91.8536 0102044 313.8250 198.7664 14.42284672336662
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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