Key statistics
Satellite PORCUPINE 2 at a glance.
Uptime
21819
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: 107.771 minutes
Inclination: 90.0098 deg
SMA: 7501.723 km
Apoapsis: 1176.912 km
Periapsis: 1070.263 km
RAAN: 211.281 deg
Eccentricy: 0.0071083
Argument of periapsis: 163.3555 deg
Mean anomaly: 313.938 deg
Mean motion: 13.36168558 rev/day
Mean motion (dot): 0.00000116 rev/day2
B* drag term: 0.00020575 1/REarth
Two-line elements (TLE)
Creation date: May 9, 2025, 2:46 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: May 8, 2025, 5:58 p.m. UTC
TLE line 0: 0 PORCUPINE 2
TLE line 1: 1 01577U 65065J 25128.74884657 .00000116 00000-0 20575-3 0 9999
TLE line 2: 2 01577 90.0098 211.2810 0071083 163.3555 313.9380 13.36168558908640
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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