IRIDIUM 171, 43929
Orbit data source: Space-Track
IRIDIUM 171, 43929 is a payload satellite owned by Iridium (US) in LEO that was launched on Fri, 11 Jan 2019 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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43929 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
NGIS SSG Gilbert
Mission
Operational Commercial Communications
Bus & Motor
ELITEBUS, Unknown motor
Mass
860 kg wet, 700 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Trap Box + 2 Pan, 4.7 m
Radar Cross Section
14.423 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 IRIDIUM 171
1 43929U 19002H 25256.94776593 .00000088 00000-0 24263-4 0 9996
2 43929 86.3940 109.3558 0002361 81.5487 278.5976 14.34217322349363Epoch: 2025-09-13T22:44Z
TLE epoch observation values (Epoch: 2025-09-13T22:44:46.976Z)
Latitude
-0.00005°
Longitude
134.98625°
Altitude
780.467 km
Speed
7.464 km/s
True Right ascension
07h 17m 25s
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
02:55:02
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.322 km
Perigee altitude
772.944 km
Semi-major axis
7,152.77 km
Eccentricity
0.00024
Inclination
86.394°
RAAN
109.3558°
Arg. of periapsis
81.5487°
True anomaly
278.57085°
Mean anomaly
278.5976°
Eccentric anomaly
278.58422°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.000024263
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Other satellites on launch #2 in the year 2019 (2019-01-11 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.IRIDIUM 171 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-09-14 13:56:54.637Z | 132.607° SE | 2025-09-14 13:59:54.637Z | 89.736° E | 24.627° | 2025-09-14 14:03:54.637Z | 30.841° NE |
| 7 mins | 2025-09-14 15:37:54.637Z | 229.561° WSW | 2025-09-14 15:40:54.637Z | 281.319° WNW | 27.613° | 2025-09-14 15:44:54.637Z | 338.867° N |
| 8 mins | 2025-09-15 02:07:54.637Z | 9.151° NNE | 2025-09-15 02:10:54.637Z | 64.906° ENE | 41.632° | 2025-09-15 02:15:54.637Z | 166.792° S |
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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