IRIDIUM 172, 43927
Orbit data source: Space-Track
IRIDIUM 172, 43927 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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43927 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, 4.8 m
Radar Cross Section
10.154 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 IRIDIUM 172
1 43927U 19002F 25292.19989482 .00000028 00000-0 29734-5 0 9997
2 43927 86.3915 94.3251 0002268 95.7617 264.3838 14.34217497354420Epoch: 2025-10-19T04:47Z
TLE epoch observation values (Epoch: 2025-10-19T04:47:50.912Z)
Latitude
0.00004°
Longitude
-5.55701°
Altitude
780.878 km
Speed
7.463 km/s
True Right ascension
06h 17m 18s
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
11:44:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.255 km
Perigee altitude
773.01 km
Semi-major axis
7,152.77 km
Eccentricity
0.00023
Inclination
86.3915°
RAAN
94.3251°
Arg. of periapsis
95.7617°
True anomaly
264.35794°
Mean anomaly
264.3838°
Eccentric anomaly
264.37087°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.0000029734
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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 172 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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2025-10-19 22:07:10.492Z | 25.364° NE | 2025-10-19 22:11:10.492Z | 78.628° E | 22.901° | 2025-10-19 22:15:10.492Z | 131.956° SE |
| 7 mins | 2025-10-19 23:49:10.492Z | 325.757° NNW | 2025-10-19 23:52:10.492Z | 269.087° W | 29.654° | 2025-10-19 23:56:10.492Z | 213.214° SW |
| 8 mins | 2025-10-20 11:04:10.492Z | 156.121° SSE | 2025-10-20 11:07:10.492Z | 97.282° ESE | 38.509° | 2025-10-20 11:12:10.492Z | 13.056° NNE |
| 4 mins | 2025-10-20 12:47:10.492Z | 267.156° W | 2025-10-20 12:48:10.492Z | 280.82° WNW | 16.077° | 2025-10-20 12:51:10.492Z | 319.011° 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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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