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: 6 hours ago
TLE from 6 hours ago
0 SIRION PATHFINDER-2
1 43759U 18099B 26125.09937256 .00005007 00000-0 27778-3 0 9998
2 43759 97.4282 175.1861 0010476 90.7998 269.4434 15.14155437406100Epoch: 2026-05-05T02:23Z
TLE epoch observation values (Epoch: 2026-05-05T02:23:05.789Z)
Latitude
-0.00003°
Longitude
-83.5671°
Altitude
526.703 km
Speed
7.6 km/s
True Right ascension
11h 40m 44s
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
16:37:27
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
527.745 km
Perigee altitude
513.291 km
Semi-major axis
6,898.655 km
Eccentricity
0.00105
Inclination
97.4282°
RAAN
175.1861°
Arg. of periapsis
90.7998°
True anomaly
269.32336°
Mean anomaly
269.4434°
Eccentric anomaly
269.38338°
Mean motion
3.78788 °/min
Orbital period
95.04 mins
BSTAR
0.00027778
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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 | 2026-05-05 15:38:58.426Z | 39.4° NE | 2026-05-05 15:41:58.426Z | 112.962° SE | 27.581° | 2026-05-05 15:43:58.426Z | 154.315° SSE |
| 5 mins | 2026-05-06 03:53:58.426Z | 209.534° SW | 2026-05-06 03:55:58.426Z | 260.238° W | 28.887° | 2026-05-06 03:58:58.426Z | 324.925° 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 |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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