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: 1 day ago
TLE from 1 day ago
0 NEXTSAT-1
1 43811U 18099BF 26079.36586137 .00001630 00000-0 10947-3 0 9991
2 43811 97.4182 125.1743 0010590 283.2826 76.7221 15.08123632398498Epoch: 2026-03-20T08:46Z
TLE epoch observation values (Epoch: 2026-03-20T08:46:50.422Z)
Latitude
-0.00006°
Longitude
175.56225°
Altitude
543.332 km
Speed
7.591 km/s
True Right ascension
08h 20m 41s
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
15:07:34
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
546.241 km
Perigee altitude
531.591 km
Semi-major axis
6,917.053 km
Eccentricity
0.00106
Inclination
97.4182°
RAAN
125.1743°
Arg. of periapsis
283.2826°
True anomaly
76.84024°
Mean anomaly
76.7221°
Eccentric anomaly
76.78117°
Mean motion
3.77278 °/min
Orbital period
95.42 mins
BSTAR
0.00010947
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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 | 2026-03-21 15:36:15.680Z | 22.906° NE | 2026-03-21 15:39:15.680Z | 89.601° E | 39.988° | 2026-03-21 15:42:15.680Z | 176.043° S |
| 6 mins | 2026-03-22 02:19:15.680Z | 125.733° SE | 2026-03-22 02:22:15.680Z | 69.611° E | 24.309° | 2026-03-22 02:25:15.680Z | 14.925° NNE |
| 4 mins | 2026-03-22 03:55:15.680Z | 235.332° WSW | 2026-03-22 03:57:15.680Z | 276.047° WNW | 18.686° | 2026-03-22 03:59:15.680Z | 309.589° NW |
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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