OAO 2, 3597
Orbit data source: Space-Track
OAO 2, 3597 is a payload satellite owned by GSFC (US) in LEO that was launched on Sat, 07 Dec 1968 UTC via an ATLAS SLV-3C CENTAUR launch vehicle from the Air Force Eastern Test Range (AFETR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
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3597 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
Grummann
Mission
Spacecraft
Bus & Motor
OAO, Unknown motor
Mass
2,018 kg wet, 2,018 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
OCT CYL + 2 PAN, 3.2 m
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 OAO 2
1 3597U 68110A 26305.88539642 .00000133 00000-0 40985-4 0 9998
2 3597 34.9947 20.7921 0006097 298.1665 61.8410 14.47394975 53485Epoch: 2026-11-01T21:14Z
TLE epoch observation values (Epoch: 2026-11-01T21:14:58.250Z)
Latitude
0°
Longitude
20.87904°
Altitude
731.069 km
Speed
7.493 km/s
True Right ascension
01h 23m 10s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
04:50:48
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
741.651 km
Perigee altitude
732.974 km
Semi-major axis
7,115.449 km
Eccentricity
0.00061
Inclination
34.9947°
RAAN
20.7921°
Arg. of periapsis
298.1665°
True anomaly
61.90262°
Mean anomaly
61.841°
Eccentric anomaly
61.87181°
Mean motion
3.61609 °/min
Orbital period
99.55 mins
BSTAR
0.000040985
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Other satellites on launch #110 in the year 1968 (1968-12-07 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.OAO 2 Visibility forecast
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Span | Click to sort rows by Start time (UTC) header in descending order | Start Az. | Max El. time (UTC) | Max El. Az. | Max El. | End time (UTC) | End Az. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-11-02 09:04:39.261Z | 210.76° SW | 2026-11-02 09:07:39.261Z | 166.43° S | 29.2° | 2026-11-02 09:11:39.261Z | 105.769° ESE |
| 8 mins | 2026-11-02 10:49:39.261Z | 240.407° WSW | 2026-11-02 10:52:39.261Z | 182.04° SSW | 48.696° | 2026-11-02 10:57:39.261Z | 102.329° ESE |
| 8 mins | 2026-11-02 12:34:39.261Z | 251.695° W | 2026-11-02 12:37:39.261Z | 196.233° SSW | 42.429° | 2026-11-02 12:42:39.261Z | 121.759° SE |
| 5 mins | 2026-11-02 14:20:39.261Z | 233.451° WSW | 2026-11-02 14:22:39.261Z | 203.937° SW | 20.417° | 2026-11-02 14:25:39.261Z | 164.998° S |
| 6 mins | 2026-11-03 08:14:39.261Z | 197.435° SSW | 2026-11-03 08:17:39.261Z | 152.217° SSE | 24.049° | 2026-11-03 08:20:39.261Z | 110.806° ESE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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