Key statistics
Satellite ATLAS 5 CENTAUR R/B at a glance.
Uptime
4341
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: 96.387 minutes
Inclination: 120.4332 deg
SMA: 6963.686 km
Apoapsis: 722.463 km
Periapsis: 448.638 km
RAAN: 325.4585 deg
Eccentricy: 0.01966099
Argument of periapsis: 25.5128 deg
Mean anomaly: 335.5491 deg
Mean motion: 14.93977419 rev/day
Mean motion (dot): 0.00013018 rev/day2
B* drag term: 0.00084613765 1/REarth
Two-line elements (TLE)
Creation date: Oct. 25, 2025, 3:11 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 24, 2025, 9:34 p.m. UTC
TLE line 0: 0 ATLAS 5 CENTAUR R/B
TLE line 1: 1 39475U 13072P 25297.89919390 .00013018 00000-0 84614-3 0 9993
TLE line 2: 2 39475 120.4332 325.4585 0196610 25.5128 335.5491 14.93977419 79362
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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