Key statistics
Satellite PORCUPINE 2 at a glance.
Uptime
21879
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: 107.77 minutes
Inclination: 90.0066 deg
SMA: 7501.692 km
Apoapsis: 1176.095 km
Periapsis: 1071.02 km
RAAN: 211.3408 deg
Eccentricy: 0.0070034
Argument of periapsis: 0.6212 deg
Mean anomaly: 117.9049 deg
Mean motion: 13.36176706 rev/day
Mean motion (dot): 0.00000084 rev/day2
B* drag term: 0.00014523 1/REarth
Two-line elements (TLE)
Creation date: July 6, 2025, 6:05 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 6, 2025, 2:36 p.m. UTC
TLE line 0: 0 PORCUPINE 2
TLE line 1: 1 01577U 65065J 25187.60835073 .00000084 00000-0 14523-3 0 9997
TLE line 2: 2 01577 90.0066 211.3408 0070034 0.6212 117.9049 13.36176706916509
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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