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: 15 hours ago
TLE from 15 hours ago
0 EXCITE
1 43819U 18099BP 25286.08214103 .00004753 00000-0 33807-3 0 9997
2 43819 97.4327 329.3439 0020205 115.1851 245.1474 15.04952151374568Epoch: 2025-10-13T01:58Z
TLE epoch observation values (Epoch: 2025-10-13T01:58:16.984Z)
Latitude
0.00001°
Longitude
-82.1169°
Altitude
560.631 km
Speed
7.578 km/s
True Right ascension
21h 57m 22s
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
11:53:38
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
562.635 km
Perigee altitude
534.644 km
Semi-major axis
6,926.777 km
Eccentricity
0.00202
Inclination
97.4327°
RAAN
329.3439°
Arg. of periapsis
115.1851°
True anomaly
244.93753°
Mean anomaly
245.1474°
Eccentric anomaly
245.04244°
Mean motion
3.76484 °/min
Orbital period
95.62 mins
BSTAR
0.00033807
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2025-10-14 02:04:00.772Z | 103.027° ESE | 2025-10-14 02:06:00.772Z | 68.267° E | 16.904° | 2025-10-14 02:08:00.772Z | 33.178° NE |
| 5 mins | 2025-10-14 03:39:00.772Z | 221.359° SW | 2025-10-14 03:41:00.772Z | 276.907° WNW | 27.052° | 2025-10-14 03:44:00.772Z | 326.655° NNW |
| 5 mins | 2025-10-14 15:16:00.772Z | 53.593° ENE | 2025-10-14 15:18:00.772Z | 104.937° ESE | 26.051° | 2025-10-14 15:21:00.772Z | 157.708° 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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