EXCITE, 43819
Orbit data source: Space-Track
EXCITE, 43819 is a payload satellite owned by DARPA (US) in SSO that was launched on Mon, 03 Dec 2018 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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43819 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
NovaWurks
Mission
Operational Defense Technology
Bus & Motor
HISAT, Unknown motor
Mass
~155 kg wet, ~155 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box, 0.9 m
Radar Cross Section
1.500 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 17 hours ago
TLE from 17 hours ago
0 EXCITE
1 43819U 18099BP 26295.65383422 .00002103 00000-0 14430-3 0 9990
2 43819 97.3842 329.3369 0016554 275.2070 84.7269 15.06936883430944Epoch: 2026-10-22T15:41Z
TLE epoch observation values (Epoch: 2026-10-22T15:41:31.276Z)
Latitude
-0.00002°
Longitude
62.87095°
Altitude
547.605 km
Speed
7.589 km/s
True Right ascension
21h 57m 20s
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
03:21:09
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
554.005 km
Perigee altitude
531.092 km
Semi-major axis
6,920.686 km
Eccentricity
0.00166
Inclination
97.3842°
RAAN
329.3369°
Arg. of periapsis
275.207°
True anomaly
84.91583°
Mean anomaly
84.7269°
Eccentric anomaly
84.82136°
Mean motion
3.76981 °/min
Orbital period
95.5 mins
BSTAR
0.0001443
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Other satellites on launch #99 in the year 2018 (2018-12-03 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.EXCITE 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-10-23 14:34:34.003Z | 38.378° NE | 2026-10-23 14:37:34.003Z | 92.556° ESE | 27.956° | 2026-10-23 14:40:34.003Z | 151.52° SSE |
| 4 mins | 2026-10-23 16:10:34.003Z | 322.648° NNW | 2026-10-23 16:12:34.003Z | 282.847° WNW | 20.176° | 2026-10-23 16:14:34.003Z | 249.049° W |
| 5 mins | 2026-10-24 02:53:34.003Z | 205.841° SW | 2026-10-24 02:55:34.003Z | 262.92° W | 40.476° | 2026-10-24 02:58:34.003Z | 328.384° NNW |
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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