SDA-NG-T1TL-317, 100999
Orbit data source: Space-Track
SDA-NG-T1TL-317, 100999 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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100999 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-317
1 A0999U 26231S 26288.63196540 .00000149 00000-0 11841-3 0 9993
2 A0999 81.5012 195.8030 0008712 287.2391 72.7814 13.86182199 740Epoch: 2026-10-15T15:10Z
TLE epoch observation values (Epoch: 2026-10-15T15:10:01.810Z)
Latitude
0.00001°
Longitude
-55.86909°
Altitude
943.032 km
Speed
7.381 km/s
True Right ascension
13h 03m 12s
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
17:50:50
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
945.61 km
Perigee altitude
932.86 km
Semi-major axis
7,317.372 km
Eccentricity
0.00087
Inclination
81.5012°
RAAN
195.803°
Arg. of periapsis
287.2391°
True anomaly
72.87679°
Mean anomaly
72.7814°
Eccentric anomaly
72.82909°
Mean motion
3.46745 °/min
Orbital period
103.82 mins
BSTAR
0.00011841
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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-317 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. |
|---|---|---|---|---|---|---|---|
| 11 mins | 2026-10-16 05:36:20.116Z | 355.861° N | 2026-10-16 05:41:20.116Z | 47.006° ENE | 69.843° | 2026-10-16 05:47:20.116Z | 164.345° S |
| 4 mins | 2026-10-16 07:24:20.116Z | 293.649° NW | 2026-10-16 07:25:20.116Z | 282.823° WNW | 15.065° | 2026-10-16 07:28:20.116Z | 250.884° W |
| 6 mins | 2026-10-16 17:18:20.116Z | 110.1° ESE | 2026-10-16 17:20:20.116Z | 87.927° E | 17.085° | 2026-10-16 17:24:20.116Z | 46.173° ENE |
| 10 mins | 2026-10-16 19:00:20.116Z | 202.277° SSW | 2026-10-16 19:05:20.116Z | 307.111° NW | 62.715° | 2026-10-16 19:10:20.116Z | 1.989° NNE |
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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