Key statistics
Satellite OV1-4 at a glance.
Uptime
21711
Days in orbit
Revolutions
≈ 13.9
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
144.5
Latest
Satellite identification and parameters
Extended collection of information and parameters for OV1-4.
Object identification
Identified? True
Debris? False
Object name: OV1-4
International designator: 1966-025A
Object number (NORAD): 2121
Object ID (CCSDS): 2121
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 103.801 minutes
Inclination: 144.5049 deg
SMA: 7316.341 km
Apoapsis: 998.765 km
Periapsis: 877.647 km
RAAN: 12.891 deg
Eccentricy: 0.00827719
Argument of periapsis: 133.9432 deg
Mean anomaly: 226.8104 deg
Mean motion: 13.87272699 rev/day
Mean motion (dot): 0.00000432 rev/day2
B* drag term: 0.00013344352 1/REarth
Two-line elements (TLE)
Creation date: Sept. 5, 2025, 7:38 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 5, 2025, 1:07 p.m. UTC
TLE line 0: 0 OV1-4
TLE line 1: 1 02121U 66025A 25248.54691599 .00000432 00000-0 13344-3 0 9991
TLE line 2: 2 02121 144.5049 12.8910 0082772 133.9432 226.8104 13.87272699 11590
Live tracking on map
Real-time ground track for satellite OV1-4.
Associated space launch
The OV1 (Orbiting Vehicle 1) were small research satellite to be launched piggy back on Atlas ICBM test flights. They consisted in general of the OV1 satellite and the OV1-PM propulsion module (or upper stage) to reach orbit.
OV1-4 was lifted into orbit during the mission ‘Atlas D | OV1-4 & 5’, on board a Atlas D space rocket.
The launch took place on March 30, 1966, 9:20 a.m. from 576B3.
For more information about the launch, click the button.
Atlas D | OV1-4 & 5
Agency: N/A
Status: Launch Successful
Launch date: March 30, 1966, 9:20 a.m. UTC
Rocket: Atlas D
Launch pad: 576B3
Location: Vandenberg SFB, CA, USA
...
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