Key statistics
Satellite DELTA 1 DEB at a glance.
Uptime
17938
Days in orbit
Revolutions
≈ 12.8
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
101.7
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: 1976-077DU
Object number (NORAD): 12539
Object ID (CCSDS): 12539
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 112.618 minutes
Inclination: 101.6982 deg
SMA: 7725.0 km
Apoapsis: 1619.393 km
Periapsis: 1074.337 km
RAAN: 149.3624 deg
Eccentricy: 0.0352787
Argument of periapsis: 142.7268 deg
Mean anomaly: 9.8753 deg
Mean motion: 12.78659882 rev/day
Mean motion (dot): 0.00000587 rev/day2
B* drag term: 0.0021849181 1/REarth
Two-line elements (TLE)
Creation date: Sept. 5, 2025, 10:27 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 5, 2025, 5 a.m. UTC
TLE line 0: 0 DELTA 1 DEB
TLE line 1: 1 12539U 76077DU 25248.20894322 .00000587 00000-0 21849-2 0 9994
TLE line 2: 2 12539 101.6982 149.3624 0352787 142.7268 9.8753 12.78659882 93066
Live tracking on map
Real-time ground track for satellite DELTA 1 DEB.
Associated space launch
Meteorological satellite using radiometric imaging
DELTA 1 DEB was lifted into orbit during the mission ‘Delta 2310 | NOAA 5’, on board a Delta 2310 space rocket.
The launch took place on July 29, 1976, 5:07 p.m. from Space Launch Complex 2W.
For more information about the launch, click the button.
Delta 2310 | NOAA 5
Agency: N/A
Status: Launch Successful
Launch date: July 29, 1976, 5:07 p.m. UTC
Rocket: Delta 2310
Launch pad: Space Launch Complex 2W
Location: Vandenberg SFB, CA, USA
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