PRAETORIAN SDA_603, 65566
Orbit data source: Space-Track
PRAETORIAN SDA_603, 65566 is a payload satellite owned by SDA (US) in LEO that was launched on Wed, 10 Sep 2025 UTC via an FALCON 9 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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65566 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
York Space Sys
Mission
Operational Defense Communications
Bus & Motor
S-CLASS, Unknown motor
Mass
~300 kg wet, ~300 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 4 Pan, 14.5 m
Radar Cross Section
1.244 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 13 hours ago
TLE from 13 hours ago
0 PRAETORIAN SDA_603
1 65566U 25203B 26171.30411024 .00000275 00000-0 23691-3 0 9990
2 65566 81.3037 7.7998 0009556 178.7312 181.3871 13.83904580 39132Epoch: 2026-06-20T07:17Z
TLE epoch observation values (Epoch: 2026-06-20T07:17:55.124Z)
Latitude
0.00001°
Longitude
-10.20054°
Altitude
959.938 km
Speed
7.368 km/s
True Right ascension
00h 31m 11s
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
07:15:01
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
954.277 km
Perigee altitude
940.277 km
Semi-major axis
7,325.414 km
Eccentricity
0.00096
Inclination
81.3037°
RAAN
7.7998°
Arg. of periapsis
178.7312°
True anomaly
181.38445°
Mean anomaly
181.3871°
Eccentric anomaly
181.38578°
Mean motion
3.46174 °/min
Orbital period
103.99 mins
BSTAR
0.00023691
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Other satellites on launch #203 in the year 2025 (2025-09-10 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.PRAETORIAN SDA_603 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 | 2026-06-20 23:30:16.346Z | 28.022° NE | 2026-06-20 23:34:16.346Z | 71.325° E | 16.936° | 2026-06-20 23:37:16.346Z | 103.179° ESE |
| 10 mins | 2026-06-21 01:15:16.346Z | 341.513° N | 2026-06-21 01:19:16.346Z | 276.26° WNW | 42.379° | 2026-06-21 01:25:16.346Z | 184.071° SSW |
| 9 mins | 2026-06-21 12:55:16.346Z | 140.314° SSE | 2026-06-21 12:59:16.346Z | 89.09° E | 26.663° | 2026-06-21 13:04:16.346Z | 31.566° NE |
| 9 mins | 2026-06-21 14:40:16.346Z | 228.443° WSW | 2026-06-21 14:44:16.346Z | 288.833° WNW | 31.58° | 2026-06-21 14:49:16.346Z | 351.088° N |
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 |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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