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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Edit Public Description
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
Unknown
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 5 hours ago
TLE from 5 hours ago
0 OAO 2
1 3597U 68110A 26036.15171136 .00000394 00000-0 11136-3 0 9993
2 3597 34.9935 86.8855 0006066 294.7839 65.2220 14.47287416 14386Epoch: 2026-02-05T03:38Z
TLE epoch observation values (Epoch: 2026-02-05T03:38:27.861Z)
Latitude
-0.00004°
Longitude
-103.0387°
Altitude
731.659 km
Speed
7.492 km/s
True Right ascension
05h 47m 32s
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
11:05:52
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
741.981 km
Perigee altitude
733.348 km
Semi-major axis
7,115.802 km
Eccentricity
0.00061
Inclination
34.9935°
RAAN
86.8855°
Arg. of periapsis
294.7839°
True anomaly
65.28513°
Mean anomaly
65.222°
Eccentric anomaly
65.25356°
Mean motion
3.61583 °/min
Orbital period
99.56 mins
BSTAR
0.00011136
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-02-05 10:39:13.657Z | 260.278° W | 2026-02-05 10:44:13.657Z | 185.426° SSW | 34.667° | 2026-02-05 10:48:13.657Z | 122.457° SE |
| 6 mins | 2026-02-05 12:26:13.657Z | 242.515° WSW | 2026-02-05 12:29:13.657Z | 198.38° SSW | 20.559° | 2026-02-05 12:32:13.657Z | 159.757° S |
| 6 mins | 2026-02-06 06:21:13.657Z | 192.468° SSW | 2026-02-06 06:24:13.657Z | 148.795° SSE | 20.214° | 2026-02-06 06:27:13.657Z | 110.331° ESE |
| 8 mins | 2026-02-06 08:05:13.657Z | 232.62° WSW | 2026-02-06 08:08:13.657Z | 181.906° SSW | 34.183° | 2026-02-06 08:13:13.657Z | 100.524° ESE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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