Key statistics
Satellite OV1-4 at a glance.
Uptime
21808
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: 103.799 minutes
Inclination: 144.5016 deg
SMA: 7316.264 km
Apoapsis: 998.651 km
Periapsis: 877.607 km
RAAN: 143.8779 deg
Eccentricy: 0.00827226
Argument of periapsis: 111.0648 deg
Mean anomaly: 249.8896 deg
Mean motion: 13.87294715 rev/day
Mean motion (dot): 0.00000376 rev/day2
B* drag term: 0.000087048298 1/REarth
Two-line elements (TLE)
Creation date: Dec. 12, 2025, 10:14 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 12, 2025, 5:22 a.m. UTC
TLE line 0: 0 OV1-4
TLE line 1: 1 02121U 66025A 25346.22430475 .00000376 00000-0 87048-4 0 9999
TLE line 2: 2 02121 144.5016 143.8779 0082723 111.0648 249.8896 13.87294715 25168
Live tracking on map
Real-time ground track for satellite OV1-4.
In-orbit conjunctions
A list of the most updated potential collisions computed for object 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
...
Latest news about this satellite
There are no fresh news available about this satellite. Check back as we update our databases every day.
Newsletter sign-up
Weekly statistics, charts and insights to help you stay on top of the space industry.
