Key statistics
Satellite IPEX at a glance.
Uptime
4232
Days in orbit
Revolutions
≈ 15.0
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
120.5
Latest
Satellite identification and parameters
Extended collection of information and parameters for IPEX.
Object identification
Identified? True
Debris? False
Object name: IPEX
International designator: 2013-072K
Object number (NORAD): 39471
Object ID (CCSDS): 39471
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 96.004 minutes
Inclination: 120.47 deg
SMA: 6945.206 km
Apoapsis: 697.516 km
Periapsis: 436.625 km
RAAN: 77.2245 deg
Eccentricy: 0.0187821
Argument of periapsis: 356.897 deg
Mean anomaly: 3.0926 deg
Mean motion: 14.99944137 rev/day
Mean motion (dot): 0.0000704 rev/day2
B* drag term: 0.00040766 1/REarth
Two-line elements (TLE)
Creation date: July 8, 2025, 2:27 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 7, 2025, 5:13 p.m. UTC
TLE line 0: 0 IPEX
TLE line 1: 1 39471U 13072K 25188.71796348 .00007040 00000-0 40766-3 0 9993
TLE line 2: 2 39471 120.4700 77.2245 0187821 356.8970 3.0926 14.99944137 63406
Live tracking on map
Real-time ground track for satellite IPEX.
In-orbit conjunctions
There are no conjunctions computed for IPEX, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
Classified payload for the U.S. National Reconnaissance Office.
IPEX 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
...
Latest news about this satellite
There are no fresh news available about this satellite. Check back as we update our databases every day.
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