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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
3173 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Edit Sat Name
Focus sentinelFocus sentinel
Create New Watchlist
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
DOMED CYL, 1.1 m
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 OV1-13
1 03173U 68026A 26259.10544188 .00000105 00000-0 16059-3 0 9991
2 03173 99.9374 63.8647 3855199 219.8792 104.4091 7.25863045544809Epoch: 2026-09-16T02:31Z
TLE epoch observation values (Epoch: 2026-09-16T02:31:50.178Z)
Latitude
0.00003°
Longitude
30.84381°
Altitude
7,253.825 km
Speed
4.808 km/s
True Right ascension
04h 15m 27s
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
09:54:43
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
9,230.241 km
Perigee altitude
544.201 km
Semi-major axis
11,265.358 km
Eccentricity
0.38552
Inclination
99.9374°
RAAN
63.8647°
Arg. of periapsis
219.8792°
True anomaly
140.19994°
Mean anomaly
104.4091°
Eccentric anomaly
122.94562°
Mean motion
1.8152 °/min
Orbital period
198.32 mins
BSTAR
0.00016059
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #26 in the year 1968 (1968-04-06 UTC)
Did you know?
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
Loading observer location...
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. |
|---|---|---|---|---|---|---|---|
| 33 mins | 2026-09-17 23:05:36.065Z | 13.406° NNE | 2026-09-17 23:30:36.065Z | 95.475° ESE | 68.146° | 2026-09-17 23:38:36.065Z | 178.489° S |
| 33 mins | 2026-09-18 02:16:36.065Z | 15.91° NNE | 2026-09-18 02:38:36.065Z | 331.811° NNW | 30.394° | 2026-09-18 02:49:36.065Z | 279.526° WNW |
| 44 mins | 2026-09-18 05:07:36.065Z | 46.483° ENE | 2026-09-18 05:34:36.065Z | 11.532° NNE | 23.172° | 2026-09-18 05:51:36.065Z | 334.934° NNW |
| 80 mins | 2026-09-18 07:41:36.065Z | 102.164° ESE | 2026-09-18 08:27:36.065Z | 44.323° NE | 48.237° | 2026-09-18 09:01:36.065Z | 346.442° N |
| 96 mins | 2026-09-18 10:39:36.065Z | 161.728° S | 2026-09-18 11:26:36.065Z | 251.63° W | 80.042° | 2026-09-18 12:15:36.065Z | 346.642° N |
| 77 mins | 2026-09-18 14:06:36.065Z | 234.209° WSW | 2026-09-18 14:41:36.065Z | 281.512° WNW | 24.801° | 2026-09-18 15:23:36.065Z | 337.156° 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 descending order |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
|---|