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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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
GD/Convair
Mission
Civil Science
Bus & Motor
OV1, Unknown motor
Mass
107 kg wet, 107 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Domed Cyl, 0.7 m
Radar Cross Section
0.946 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 8 hours ago
TLE from 8 hours ago
0 OV1-13
1 03173U 68026A 25258.22434788 .00000079 00000-0 11124-3 0 9994
2 03173 99.9489 305.5982 3855974 151.9212 235.8411 7.25753933518257Epoch: 2025-09-15T05:23Z
TLE epoch observation values (Epoch: 2025-09-15T05:23:03.656Z)
Latitude
-0.00003°
Longitude
-129.5991°
Altitude
8,159.594 km
Speed
4.413 km/s
True Right ascension
20h 22m 23s
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
06:25:19
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
9,232.679 km
Perigee altitude
544.022 km
Semi-major axis
11,266.488 km
Eccentricity
0.3856
Inclination
99.9489°
RAAN
305.5982°
Arg. of periapsis
151.9212°
True anomaly
208.1534°
Mean anomaly
235.8411°
Eccentric anomaly
221.26869°
Mean motion
1.81493 °/min
Orbital period
198.35 mins
BSTAR
0.00011124
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-09-15 16:19:41.325Z | 12.147° NNE | 2025-09-15 16:23:41.325Z | 324.309° NNW | 43.726° | 2025-09-15 16:26:41.325Z | 202.139° SSW |
| 48 mins | 2025-09-16 01:13:41.325Z | 130.337° SE | 2025-09-16 01:48:41.325Z | 63.527° ENE | 39.66° | 2025-09-16 02:01:41.325Z | 355.455° N |
| 59 mins | 2025-09-16 04:17:41.325Z | 187.464° SSW | 2025-09-16 04:58:41.325Z | 254.424° W | 35.624° | 2025-09-16 05:16:41.325Z | 328.365° NNW |
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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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