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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Edit Public Description
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, 0.5 m
Radar Cross Section
1.500 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 13 hours ago
TLE from 13 hours ago
0 EXCITE
1 43819U 18099BP 26034.54485911 .00003181 00000-0 22243-3 0 9993
2 43819 97.4157 78.5157 0020041 89.1096 271.2427 15.05822028391633Epoch: 2026-02-03T13:04Z
TLE epoch observation values (Epoch: 2026-02-03T13:04:35.827Z)
Latitude
-0.00005°
Longitude
108.64217°
Altitude
551.781 km
Speed
7.586 km/s
True Right ascension
05h 14m 03s
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
03:32:43
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
559.845 km
Perigee altitude
532.092 km
Semi-major axis
6,924.106 km
Eccentricity
0.002
Inclination
97.4157°
RAAN
78.5157°
Arg. of periapsis
89.1096°
True anomaly
271.01309°
Mean anomaly
271.2427°
Eccentric anomaly
271.1279°
Mean motion
3.76702 °/min
Orbital period
95.57 mins
BSTAR
0.00022243
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-02-04 01:59:14.639Z | 110.785° ESE | 2026-02-04 02:01:14.639Z | 75.787° E | 18.919° | 2026-02-04 02:04:14.639Z | 22.614° NE |
| 5 mins | 2026-02-04 03:34:14.639Z | 221.453° SW | 2026-02-04 03:36:14.639Z | 267.268° W | 24.006° | 2026-02-04 03:39:14.639Z | 321.167° NNW |
| 5 mins | 2026-02-04 15:11:14.639Z | 51.144° ENE | 2026-02-04 15:13:14.639Z | 110.36° ESE | 29.238° | 2026-02-04 15:16:14.639Z | 163.161° S |
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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