Key statistics
Satellite ATLAS AGENA D R/B at a glance.
Uptime
21700
Days in orbit
Revolutions
≈ 14.4
Per day
Orbit
LEO
Low Earth Orbit
Inclination
35.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for ATLAS AGENA D R/B.
Object identification
Identified? True
Debris? False
Object name: ATLAS AGENA D R/B
International designator: 1966-031B
Object number (NORAD): 2144
Object ID (CCSDS): 2144
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 99.677 minutes
Inclination: 35.0411 deg
SMA: 7121.254 km
Apoapsis: 749.408 km
Periapsis: 736.831 km
RAAN: 129.3632 deg
Eccentricy: 0.0008831
Argument of periapsis: 255.2641 deg
Mean anomaly: 104.7071 deg
Mean motion: 14.44667832 rev/day
Mean motion (dot): 0.00000704 rev/day2
B* drag term: 0.00020579491 1/REarth
Two-line elements (TLE)
Creation date: Sept. 4, 2025, 10:13 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 4, 2025, 4:08 a.m. UTC
TLE line 0: 0 ATLAS AGENA D R/B
TLE line 1: 1 02144U 66031B 25247.17284666 .00000704 00000-0 20579-3 0 9994
TLE line 2: 2 02144 35.0411 129.3632 0008831 255.2641 104.7071 14.44667832121388
Live tracking on map
Real-time ground track for satellite ATLAS AGENA D R/B.
In-orbit conjunctions
A list of the most updated potential collisions computed for object ATLAS AGENA D R/B.
Associated space launch
OAO 1 (Orbiting Astronomical Observatory 1) was a solar-cell-powered satellite instrumented to make precision astronomical observations and to measure the absorption and emission characteristics of the stars, planets, nebulae, and the interplanetary and interstellar media from visible to gamma-ray regions.
ATLAS AGENA D R/B was lifted into orbit during the mission ‘Atlas SLV-3 Agena D | OAO 1’, on board a Atlas SLV-3 Agena D space rocket.
The launch took place on April 8, 1966, 7:35 p.m. from Launch Complex 12.
For more information about the launch, click the button.
Atlas SLV-3 Agena D | OAO 1
Agency: N/A
Status: Launch Successful
Launch date: April 8, 1966, 7:35 p.m. UTC
Rocket: Atlas SLV-3 Agena D
Launch pad: Launch Complex 12
Location: Cape Canaveral SFS, FL, USA
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