SIRION PATHFINDER-2, 43759
Orbit data source: Space-Track
SIRION PATHFINDER-2, 43759 is an American payload satellite 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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43759 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
Astro Digital
Mission
Operational Commercial Communications
Bus & Motor
CUBESAT 6U, Unknown motor
Mass
10 kg wet, 10 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 0.7 m
Radar Cross Section
0.143 m², Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 9 hours ago
TLE from 9 hours ago
0 SIRION PATHFINDER-2
1 43759U 18099B 26079.89018611 .00005256 00000-0 29568-3 0 9994
2 43759 97.4361 131.0522 0007560 239.5559 120.4926 15.13660614399266Epoch: 2026-03-20T21:21Z
TLE epoch observation values (Epoch: 2026-03-20T21:21:52.079Z)
Latitude
-0.00007°
Longitude
-7.83355°
Altitude
530.78 km
Speed
7.596 km/s
True Right ascension
08h 44m 12s
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
11:36:23
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
527.24 km
Perigee altitude
516.807 km
Semi-major axis
6,900.16 km
Eccentricity
0.00076
Inclination
97.4361°
RAAN
131.0522°
Arg. of periapsis
239.5559°
True anomaly
120.56721°
Mean anomaly
120.4926°
Eccentric anomaly
120.52991°
Mean motion
3.78664 °/min
Orbital period
95.07 mins
BSTAR
0.00029568
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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.SIRION PATHFINDER-2 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 | 2026-03-21 15:23:39.535Z | 47.037° ENE | 2026-03-21 15:26:39.535Z | 102.443° ESE | 19.355° | 2026-03-21 15:28:39.535Z | 138.506° SSE |
| 4 mins | 2026-03-21 16:58:39.535Z | 330.247° NNW | 2026-03-21 17:00:39.535Z | 285.838° WNW | 22.454° | 2026-03-21 17:02:39.535Z | 244.999° WSW |
| 6 mins | 2026-03-22 03:38:39.535Z | 186.885° SSW | 2026-03-22 03:40:39.535Z | 232.951° WSW | 38.739° | 2026-03-22 03:44:39.535Z | 338.929° 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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