Key statistics
Satellite CALSPHERE 2 at a glance.
Uptime
22249
Days in orbit
Revolutions
≈ 13.5
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
90.2
Latest
Satellite identification and parameters
Extended collection of information and parameters for CALSPHERE 2.
Object identification
Identified? True
Debris? False
Object name: CALSPHERE 2
International designator: 1964-063E
Object number (NORAD): 902
Object ID (CCSDS): 902
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 106.44 minutes
Inclination: 90.2257 deg
SMA: 7439.853 km
Apoapsis: 1075.034 km
Periapsis: 1048.401 km
RAAN: 69.0643 deg
Eccentricy: 0.00178992
Argument of periapsis: 343.5094 deg
Mean anomaly: 190.5999 deg
Mean motion: 13.52870578 rev/day
Mean motion (dot): 0.00000098 rev/day2
B* drag term: 0.00013421531 1/REarth
Two-line elements (TLE)
Creation date: Sept. 4, 2025, 10:13 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 4, 2025, 6:32 a.m. UTC
TLE line 0: 0 CALSPHERE 2
TLE line 1: 1 00902U 64063E 25247.27243823 .00000098 00000-0 13422-3 0 9993
TLE line 2: 2 00902 90.2257 69.0643 0017899 343.5094 190.5999 13.52870578817608
Live tracking on map
Real-time ground track for satellite CALSPHERE 2.
In-orbit conjunctions
A list of the most updated potential collisions computed for object CALSPHERE 2.
Associated 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.
CALSPHERE 2 was lifted into orbit during the mission ‘Thor DM-21 Ablestar | Transit-O 1’, on board a Thor DM-21 Ablestar space rocket.
The launch took place on Oct. 6, 1964, 5:04 p.m. from Space Launch Complex 2W.
For more information about the launch, click the button.
Thor DM-21 Ablestar | Transit-O 1
Agency: N/A
Status: Launch Successful
Launch date: Oct. 6, 1964, 5:04 p.m. UTC
Rocket: Thor DM-21 Ablestar
Launch pad: Space Launch Complex 2W
Location: Vandenberg SFB, CA, USA
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