OPS 0757 (TACSAT), 3691
Orbit data source: Space-Track
OPS 0757 (TACSAT), 3691 is a payload satellite owned by SAMSO (US) in GEO that was launched on Sun, 09 Feb 1969 UTC via a TITAN IIIC 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.
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
3691 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
Identifier
Orbit
Last TLE update
8 hours ago
Origin
Manufacturer
Hughes
Mission
Non-operational Defense Communications
Bus & Motor
HS-308, Unknown motor
Mass
721 kg wet, ~650 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Cyl, 7.6 m
Radar Cross Section
19.792 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & history
TLE from 8 hours ago
0 OPS 0757 (TACSAT)
1 03691U 69013A 25128.91005498 -.00000250 00000-0 00000-0 0 9990
2 03691 1.8243 76.3710 0018524 169.9243 88.6102 1.00405764110045Epoch: 2025-05-08T21:50Z
Definitive object data (Epoch: 2025-05-08T21:50:28.75Z)
Latitude
-1.77041°
Longitude
140.51784°
Altitude
35,747.342 km
Speed
3.076 km/s
True Right ascension
22h 20m 26s
True Declination
-1° 46' 07"
Sunlit
Visualization TLE readout
Latitude
0.7004°
Longitude
-95.55757°
Altitude
35,814.184 km
Speed
3.071 km/s
Apparent Right ascension
06h 13m 07s
Apparent Declination
-4° 34' 25"
Sunlit
Visualization observer readout
Local Sidereal Time
14:14:16
Azimuth
286.895° WNW
Elevation
-25.897°
Doppler factor
1
Loading historical data...
3691 neighbors
Authenticating...
Loading maneuver chart data...
Loading SW <> Apogee altitude chart data...
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 #13 in the year 1969 (1969-02-09 UTC)
OPS 0757 (TACSAT) Visibility forecast
Observer location: undefined°, undefined°
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. |
|---|
Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
|---|
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 ascending order |
|---|