NEXTSAT-1, 43811
Orbit data source: Space-Track
NEXTSAT-1, 43811 is a payload satellite owned by KAIST (KR) 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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43811 intel report (Beta)
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Identifier
Orbit
Country
KR / SKORRelated business
Manufacturer
SatRec Initiative
Mission
Operational Civil Ast/Tech
Bus & Motor
NEXTSAT, Unknown motor
Mass
~100 kg wet, ~100 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + Cyl + 1 Pan, 1.0 m
Radar Cross Section
0.908 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 10 hours ago
TLE from 10 hours ago
0 NEXTSAT-1
1 43811U 18099BF 26235.83984153 .00001982 00000-0 12926-3 0 9996
2 43811 97.4030 276.1804 0013949 102.7206 257.5583 15.08917290422087Epoch: 2026-08-23T20:09Z
TLE epoch observation values (Epoch: 2026-08-23T20:09:22.308Z)
Latitude
-0.00003°
Longitude
1.70732°
Altitude
544.675 km
Speed
7.589 km/s
True Right ascension
18h 24m 43s
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
21:35:00
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
546.133 km
Perigee altitude
526.842 km
Semi-major axis
6,914.625 km
Eccentricity
0.00139
Inclination
97.403°
RAAN
276.1804°
Arg. of periapsis
102.7206°
True anomaly
257.40227°
Mean anomaly
257.5583°
Eccentric anomaly
257.48028°
Mean motion
3.77477 °/min
Orbital period
95.37 mins
BSTAR
0.00012926
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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.NEXTSAT-1 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 | 2026-08-24 15:49:16.058Z | 3.395° NNE | 2026-08-24 15:52:16.058Z | 267.829° W | 42.078° | 2026-08-24 15:55:16.058Z | 203.958° SW |
| 6 mins | 2026-08-25 02:32:16.058Z | 144.75° SSE | 2026-08-25 02:34:16.058Z | 96.418° ESE | 38.013° | 2026-08-25 02:38:16.058Z | 358.084° N |
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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