STPSAT-6, 49817
Orbit data source: Space-Track
STPSAT-6, 49817 is a payload satellite owned by USAF STP (US) in GEO that was launched on Tue, 07 Dec 2021 UTC via an ATLAS V 551 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
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
49817 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
NGAS
Mission
Operational Defense Technology
Bus & Motor
A-500, Unknown motor
Mass
~1,000 kg wet, ~1,000 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 1 Pan, 1.0 m
Radar Cross Section
2.500 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 9 hours ago
TLE from 9 hours ago
0 STPSAT-6
1 49817U 21118A 25353.24575925 -.00000021 00000-0 00000-0 0 9993
2 49817 0.0178 302.0173 0002427 353.0085 129.8406 1.00271226 14761Epoch: 2025-12-19T05:53Z
TLE epoch observation values (Epoch: 2025-12-19T05:53:53.599Z)
Latitude
0.03556°
Longitude
-111.68648°
Altitude
35,792.846 km
Speed
3.074 km/s
True Right ascension
04h 19m 30s
True Declination
0° 02' 08"
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
13:45:44
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,798.056 km
Perigee altitude
35,777.588 km
Semi-major axis
42,165.959 km
Eccentricity
0.00024
Inclination
0.0178°
RAAN
302.0173°
Arg. of periapsis
353.0085°
True anomaly
129.86195°
Mean anomaly
129.8406°
Eccentric anomaly
129.85128°
Mean motion
0.25067 °/min
Orbital period
1,436.16 mins
BSTAR
0
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 #118 in the year 2021 (2021-12-07 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.STPSAT-6 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. |
|---|---|---|---|---|---|---|---|
| 1440 mins | 2025-12-19 14:52:23.071Z | 190.246° SSW | 2025-12-20 06:04:23.071Z | 190.186° SSW | 34.478° | 2025-12-20 14:52:23.071Z | 190.248° SSW |
Loading historical data...
49817 neighbors
Authenticating...
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 |
|---|