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, 4.7 m
Radar Cross Section
14.423 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 15 hours ago
TLE from 15 hours ago
0 IRIDIUM 172
1 43927U 19002F 25259.61799610 .00000011 00000-0 -31115-5 0 9998
2 43927 86.3926 107.9622 0001733 90.2279 269.9115 14.34217769349756Epoch: 2025-09-16T14:49Z
TLE epoch observation values (Epoch: 2025-09-16T14:49:54.863Z)
Latitude
-0.00004°
Longitude
-110.32211°
Altitude
780.72 km
Speed
7.463 km/s
True Right ascension
07h 11m 50s
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
22:14:05
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
775.871 km
Perigee altitude
773.392 km
Semi-major axis
7,152.769 km
Eccentricity
0.00017
Inclination
86.3926°
RAAN
107.9622°
Arg. of periapsis
90.2279°
True anomaly
269.89164°
Mean anomaly
269.9115°
Eccentric anomaly
269.90157°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
-0.0000031115
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2025-09-17 14:22:55.894Z | 174.509° S | 2025-09-17 14:27:55.894Z | 50.565° ENE | 43.565° | 2025-09-17 14:31:55.894Z | 6.623° NNE |
| 5 mins | 2025-09-18 00:55:55.894Z | 50.196° ENE | 2025-09-18 00:57:55.894Z | 79.116° E | 18.264° | 2025-09-18 01:00:55.894Z | 117.52° SE |
| 8 mins | 2025-09-18 02:34:55.894Z | 339.958° N | 2025-09-18 02:38:55.894Z | 265.563° W | 35.548° | 2025-09-18 02:42:55.894Z | 204.193° SW |
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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