Key statistics
Satellite ARC-1 at a glance.
Uptime
3621
Days in orbit
Revolutions
≈ 15.2
Per day
Orbit
LEO
Low Earth Orbit
Inclination
64.8
Latest
Satellite identification and parameters
Extended collection of information and parameters for ARC-1.
Object identification
Identified? True
Debris? False
Object name: ARC-1
International designator: 2015-058F
Object number (NORAD): 40969
Object ID (CCSDS): 40969
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 94.518 minutes
Inclination: 64.7734 deg
SMA: 6873.358 km
Apoapsis: 540.098 km
Periapsis: 450.348 km
RAAN: 344.4224 deg
Eccentricy: 0.00652885
Argument of periapsis: 162.3139 deg
Mean anomaly: 198.0284 deg
Mean motion: 15.23524058 rev/day
Mean motion (dot): 0.00037383 rev/day2
B* drag term: 0.0014681855 1/REarth
Two-line elements (TLE)
Creation date: Sept. 6, 2025, 2:09 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 5, 2025, 4:07 p.m. UTC
TLE line 0: 0 ARC-1
TLE line 1: 1 40969U 15058F 25248.67163297 .00037383 00000-0 14682-2 0 9996
TLE line 2: 2 40969 64.7734 344.4224 0065289 162.3139 198.0284 15.23524058 73343
Live tracking on map
Real-time ground track for satellite ARC-1.
In-orbit conjunctions
There are no conjunctions computed for ARC-1, 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.
ARC-1 was lifted into orbit during the mission ‘Atlas V 401 | NROL-55 (Multipayload mission)’, on board a Atlas V 401 space rocket.
The launch took place on Oct. 8, 2015, 12:49 p.m. from Space Launch Complex 3E.
For more information about the launch, click the button.
Atlas V 401 | NROL-55 (Multipayload mission)
Agency: N/A
Status: Launch Successful
Launch date: Oct. 8, 2015, 12:49 p.m. UTC
Rocket: Atlas V 401
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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