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.
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49817 intel report (Beta)
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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: 16 hours ago
TLE from 16 hours ago
0 STPSAT-6
1 49817U 21118A 25291.24620252 -.00000052 00000-0 00000-0 0 9992
2 49817 0.0407 52.0291 0002030 224.6579 87.2702 1.00269175 14148Epoch: 2025-10-18T05:54Z
TLE epoch observation values (Epoch: 2025-10-18T05:54:31.897Z)
Latitude
-0.00024°
Longitude
-111.65256°
Altitude
35,786.426 km
Speed
3.075 km/s
True Right ascension
00h 15m 50s
True Declination
0° 00' 01"
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
16:43:29
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,796.957 km
Perigee altitude
35,779.837 km
Semi-major axis
42,166.534 km
Eccentricity
0.0002
Inclination
0.0407°
RAAN
52.0291°
Arg. of periapsis
224.6579°
True anomaly
87.29344°
Mean anomaly
87.2702°
Eccentric anomaly
87.28182°
Mean motion
0.25066 °/min
Orbital period
1,436.19 mins
BSTAR
0
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Other satellites on launch #118 in the year 2021 (2021-12-07 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.STPSAT-6 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. |
|---|---|---|---|---|---|---|---|
| 1440 mins | 2025-10-18 21:53:25.310Z | 190.195° SSW | 2025-10-19 02:25:25.310Z | 190.159° SSW | 34.469° | 2025-10-19 21:53:25.310Z | 190.212° SSW |
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49817 neighbors
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Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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