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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
43819 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Create New Watchlist
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: 7 hours ago
TLE from 7 hours ago
0 EXCITE
1 43819U 18099BP 26079.86001130 .00002638 00000-0 18412-3 0 9993
2 43819 97.4085 122.0917 0017077 295.7809 64.1656 15.06093879398459Epoch: 2026-03-20T20:38Z
TLE epoch observation values (Epoch: 2026-03-20T20:38:24.976Z)
Latitude
-0.00003°
Longitude
-5.90138°
Altitude
546.082 km
Speed
7.592 km/s
True Right ascension
08h 08m 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
08:47:20
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
556.957 km
Perigee altitude
533.312 km
Semi-major axis
6,923.271 km
Eccentricity
0.00171
Inclination
97.4085°
RAAN
122.0917°
Arg. of periapsis
295.7809°
True anomaly
64.34189°
Mean anomaly
64.1656°
Eccentric anomaly
64.25373°
Mean motion
3.7677 °/min
Orbital period
95.55 mins
BSTAR
0.00018412
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #99 in the year 2018 (2018-12-03 UTC)
Did you know?
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
Loading observer location...
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 | 2026-03-21 14:46:04.033Z | 52.615° ENE | 2026-03-21 14:48:04.033Z | 88.04° E | 19.561° | 2026-03-21 14:51:04.033Z | 141.159° SSE |
| 5 mins | 2026-03-21 16:21:04.033Z | 332.452° NNW | 2026-03-21 16:23:04.033Z | 288.526° WNW | 24.386° | 2026-03-21 16:26:04.033Z | 234.223° WSW |
| 6 mins | 2026-03-22 03:04:04.033Z | 186.931° SSW | 2026-03-22 03:07:04.033Z | 284.388° WNW | 38.439° | 2026-03-22 03:10:04.033Z | 337.114° NNW |
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 |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
|---|