SDA-NG-T1TL-309, 100991
Orbit data source: Space-Track
SDA-NG-T1TL-309, 100991 is an American payload satellite in LEO that was launched on Sat, 10 Oct 2026 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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100991 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
None
Manufacturer
Unknown
Mission
Operational spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
RCS unknown
Expand to show TLE details & historyLast TLE update: 8 hours ago
TLE from 8 hours ago
0 SDA-NG-T1TL-309
1 A0991U 26231J 26288.63412088 .00000148 00000-0 11907-3 0 9995
2 A0991 81.4993 195.8068 0008871 305.2172 54.8155 13.85615061 741Epoch: 2026-10-15T15:13Z
TLE epoch observation values (Epoch: 2026-10-15T15:13:08.044Z)
Latitude
0.00001°
Longitude
-56.64339°
Altitude
943.172 km
Speed
7.382 km/s
True Right ascension
13h 03m 13s
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
17:50:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
947.726 km
Perigee altitude
934.74 km
Semi-major axis
7,319.37 km
Eccentricity
0.00089
Inclination
81.4993°
RAAN
195.8068°
Arg. of periapsis
305.2172°
True anomaly
54.89864°
Mean anomaly
54.8155°
Eccentric anomaly
54.85706°
Mean motion
3.46603 °/min
Orbital period
103.87 mins
BSTAR
0.00011907
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Other satellites on launch #231 in the year 2026 (2026-10-10 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.SDA-NG-T1TL-309 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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2026-10-16 05:40:50.764Z | 355.905° N | 2026-10-16 05:44:50.764Z | 40.274° NE | 74.029° | 2026-10-16 05:50:50.764Z | 166.809° S |
| 4 mins | 2026-10-16 07:27:50.764Z | 293.215° NW | 2026-10-16 07:28:50.764Z | 282.714° WNW | 14.037° | 2026-10-16 07:31:50.764Z | 251.874° W |
| 6 mins | 2026-10-16 17:21:50.764Z | 113.743° SE | 2026-10-16 17:24:50.764Z | 78.8° E | 18.383° | 2026-10-16 17:27:50.764Z | 47.246° ENE |
| 10 mins | 2026-10-16 19:03:50.764Z | 204.346° SW | 2026-10-16 19:08:50.764Z | 289.78° WNW | 60.407° | 2026-10-16 19:13:50.764Z | 359.79° 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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