Key statistics
Satellite ATLAS 5 CENTAUR R/B at a glance.
Uptime
4292
Days in orbit
Revolutions
≈ 14.9
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
120.4
Latest
Satellite identification and parameters
Extended collection of information and parameters for ATLAS 5 CENTAUR R/B.
Object identification
Identified? True
Debris? False
Object name: ATLAS 5 CENTAUR R/B
International designator: 2013-072P
Object number (NORAD): 39475
Object ID (CCSDS): 39475
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 96.497 minutes
Inclination: 120.4305 deg
SMA: 6968.959 km
Apoapsis: 726.421 km
Periapsis: 455.227 km
RAAN: 142.4491 deg
Eccentricy: 0.0194573
Argument of periapsis: 334.5337 deg
Mean anomaly: 24.6243 deg
Mean motion: 14.9228189 rev/day
Mean motion (dot): 0.00012055 rev/day2
B* drag term: 0.00083171721 1/REarth
Two-line elements (TLE)
Creation date: Sept. 5, 2025, 7:38 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 5, 2025, 1:08 p.m. UTC
TLE line 0: 0 ATLAS 5 CENTAUR R/B
TLE line 1: 1 39475U 13072P 25248.54751413 .00012055 00000-0 83172-3 0 9999
TLE line 2: 2 39475 120.4305 142.4491 0194573 334.5337 24.6243 14.92281890 71998
Live tracking on map
Real-time ground track for satellite ATLAS 5 CENTAUR R/B.
In-orbit conjunctions
A list of the most updated potential collisions computed for object ATLAS 5 CENTAUR R/B.
Associated space launch
Classified payload for the U.S. National Reconnaissance Office.
ATLAS 5 CENTAUR R/B was lifted into orbit during the mission ‘Atlas V 501 | NROL-39 (USA-247)’, on board a Atlas V 501 space rocket.
The launch took place on Dec. 6, 2013, 7:14 a.m. from Space Launch Complex 3E.
For more information about the launch, click the button.
Atlas V 501 | NROL-39 (USA-247)
Agency: N/A
Status: Launch Successful
Launch date: Dec. 6, 2013, 7:14 a.m. UTC
Rocket: Atlas V 501
Launch pad: Space Launch Complex 3E
Location: Vandenberg SFB, CA, USA
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