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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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: 7 hours ago
TLE from 7 hours ago
0 IRIDIUM 172
1 43927U 19002F 26078.94642244 .00000184 00000-0 58641-4 0 9996
2 43927 86.3991 30.8535 0002299 82.7496 277.3961 14.34217883376175Epoch: 2026-03-19T22:42Z
TLE epoch observation values (Epoch: 2026-03-19T22:42:50.898Z)
Latitude
-0.00005°
Longitude
-127.34712°
Altitude
780.506 km
Speed
7.464 km/s
True Right ascension
02h 03m 24s
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
10:21:13
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.276 km
Perigee altitude
772.987 km
Semi-major axis
7,152.768 km
Eccentricity
0.00023
Inclination
86.3991°
RAAN
30.8535°
Arg. of periapsis
82.7496°
True anomaly
277.36997°
Mean anomaly
277.3961°
Eccentric anomaly
277.38304°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.000058641
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-03-20 07:40:37.246Z | 38.024° NE | 2026-03-20 07:43:37.246Z | 75.567° E | 16.653° | 2026-03-20 07:46:37.246Z | 113.222° SE |
| 8 mins | 2026-03-20 09:21:37.246Z | 338.222° N | 2026-03-20 09:24:37.246Z | 274.037° WNW | 37.929° | 2026-03-20 09:29:37.246Z | 197.883° SSW |
| 8 mins | 2026-03-20 20:36:37.246Z | 143.108° SSE | 2026-03-20 20:39:37.246Z | 97.669° ESE | 30.061° | 2026-03-20 20:44:37.246Z | 20.915° NNE |
| 6 mins | 2026-03-20 22:18:37.246Z | 245.752° WSW | 2026-03-20 22:20:37.246Z | 276.784° WNW | 22.165° | 2026-03-20 22:24:37.246Z | 332.067° 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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