OV1-13, 3173
Orbit data source: Space-Track
OV1-13, 3173 is a payload satellite owned by USAF OAR (US) that was launched on Sat, 06 Apr 1968 UTC via an ATLAS F launch vehicle from the Air Force Western Test Range (AFWTR). 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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3173 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
GD/Convair
Mission
Spacecraft
Bus & Motor
OV1, Unknown motor
Mass
107 kg wet, 107 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 14 hours ago
TLE from 14 hours ago
0 OV1-13
1 03173U 68026A 26082.03178986 .00000302 00000-0 41587-3 0 9999
2 03173 99.9544 6.5827 3857859 1.2348 359.5406 7.25832324531958Epoch: 2026-03-23T00:45Z
TLE epoch observation values (Epoch: 2026-03-23T00:45:46.643Z)
Latitude
-0°
Longitude
174.60873°
Altitude
544.938 km
Speed
8.934 km/s
True Right ascension
00h 26m 19s
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
20:01:16
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
9,233.678 km
Perigee altitude
541.4 km
Semi-major axis
11,265.676 km
Eccentricity
0.38579
Inclination
99.9544°
RAAN
6.5827°
Arg. of periapsis
1.2348°
True anomaly
358.87658°
Mean anomaly
359.5406°
Eccentric anomaly
359.25207°
Mean motion
1.81513 °/min
Orbital period
198.33 mins
BSTAR
0.00041587
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Other satellites on launch #26 in the year 1968 (1968-04-06 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.OV1-13 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. |
|---|---|---|---|---|---|---|---|
| 12 mins | 2026-03-23 17:26:18.149Z | 96.998° ESE | 2026-03-23 17:30:18.149Z | 41.773° NE | 24.803° | 2026-03-23 17:38:18.149Z | 354.938° N |
| 65 mins | 2026-03-24 03:53:18.149Z | 38.922° NE | 2026-03-24 04:21:18.149Z | 90.565° ESE | 21.466° | 2026-03-24 04:58:18.149Z | 136.357° SSE |
| 82 mins | 2026-03-24 07:03:18.149Z | 17.02° NNE | 2026-03-24 07:29:18.149Z | 103.412° ESE | 44.638° | 2026-03-24 08:25:18.149Z | 201.863° SSW |
| 54 mins | 2026-03-24 10:19:18.149Z | 2.539° NNE | 2026-03-24 10:36:18.149Z | 309.4° NW | 32.332° | 2026-03-24 11:13:18.149Z | 258.012° W |
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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