Key statistics
Satellite OAO 2 at a glance.
Uptime
20666
Days in orbit
Revolutions
≈ 14.5
Per day
Orbit
LEO
Low Earth Orbit
Inclination
35.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for OAO 2.
Object identification
Identified? True
Debris? False
Object name: OAO 2
International designator: 1968-110A
Object number (NORAD): 3597
Object ID (CCSDS): 3597
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 99.508 minutes
Inclination: 34.9914 deg
SMA: 7113.193 km
Apoapsis: 738.862 km
Periapsis: 731.253 km
RAAN: 200.4244 deg
Eccentricy: 0.0005349
Argument of periapsis: 17.2498 deg
Mean anomaly: 342.8374 deg
Mean motion: 14.47124547 rev/day
Mean motion (dot): 0.00000148 rev/day2
B* drag term: 0.000045308 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, 8:13 a.m. UTC
TLE line 0: 0 OAO 2
TLE line 1: 1 03597U 68110A 25187.34300502 .00000148 00000-0 45308-4 0 9997
TLE line 2: 2 03597 34.9914 200.4244 0005349 17.2498 342.8374 14.47124547983420
Live tracking on map
Real-time ground track for satellite OAO 2.
In-orbit conjunctions
A list of the most updated potential collisions computed for object OAO 2.
Associated space launch
OAO 2 (Orbiting Astronomical Observatory), also known as Stargazer, was one of a series of automated astronomical observatories that was ground controllable in orientation and was placed in a low-earth orbit.
OAO 2 was lifted into orbit during the mission ‘Atlas SLV-3C Centaur | OAO 2’, on board a Atlas SLV-3C Centaur space rocket.
The launch took place on Dec. 7, 1968, 8:40 a.m. from Launch Complex 36B.
For more information about the launch, click the button.
Atlas SLV-3C Centaur | OAO 2
Agency: N/A
Status: Launch Successful
Launch date: Dec. 7, 1968, 8:40 a.m. UTC
Rocket: Atlas SLV-3C Centaur
Launch pad: Launch Complex 36B
Location: Cape Canaveral SFS, FL, USA
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