Key statistics
Satellite PORCUPINE 2 at a glance.
Uptime
21935
Days in orbit
Revolutions
≈ 13.4
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
90.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for PORCUPINE 2.
Object identification
Identified? True
Debris? False
Object name: PORCUPINE 2
International designator: 1965-065J
Object number (NORAD): 1577
Object ID (CCSDS): 1577
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 107.769 minutes
Inclination: 90.0122 deg
SMA: 7501.653 km
Apoapsis: 1175.424 km
Periapsis: 1071.613 km
RAAN: 211.3993 deg
Eccentricy: 0.0069192
Argument of periapsis: 198.4296 deg
Mean anomaly: 215.9505 deg
Mean motion: 13.36187156 rev/day
Mean motion (dot): 0.00000166 rev/day2
B* drag term: 0.00030149186 1/REarth
Two-line elements (TLE)
Creation date: Sept. 1, 2025, 2:20 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Aug. 31, 2025, 9:47 p.m. UTC
TLE line 0: 0 PORCUPINE 2
TLE line 1: 1 01577U 65065J 25243.90782565 .00000166 00000-0 30149-3 0 9993
TLE line 2: 2 01577 90.0122 211.3993 0069192 198.4296 215.9505 13.36187156924025
Live tracking on map
Real-time ground track for satellite PORCUPINE 2.
In-orbit conjunctions
There are no conjunctions computed for PORCUPINE 2, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
The Transit-O series of satellites that closely followed the design of Transit 5C-1 were also called “Oscars” (Oscar is the phonetic alphabet for “O”, i. e., operational). They were also called NNS (Navy Navigation Satellite) or shortened NavSat.
PORCUPINE 2 was lifted into orbit during the mission ‘Thor DM-21 Ablestar | Transit-O 5’, on board a Thor DM-21 Ablestar space rocket.
The launch took place on Aug. 13, 1965, 10:11 p.m. from Space Launch Complex 2E.
For more information about the launch, click the button.
Thor DM-21 Ablestar | Transit-O 5
Agency: N/A
Status: Launch Successful
Launch date: Aug. 13, 1965, 10:11 p.m. UTC
Rocket: Thor DM-21 Ablestar
Launch pad: Space Launch Complex 2E
Location: Vandenberg SFB, CA, USA
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Latest news about this satellite
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