IRIDIUM 123, 42804
Orbit data source: Space-Track
IRIDIUM 123, 42804 is a payload satellite owned by Iridium (US) in LEO that was launched on Sun, 25 Jun 2017 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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42804 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
OATK 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: 16 hours ago
TLE from 16 hours ago
0 IRIDIUM 123
1 42804U 17039B 25300.39452272 .00000245 00000-0 80505-4 0 9995
2 42804 86.3929 90.9576 0001897 81.8937 278.2474 14.34218537436582Epoch: 2025-10-27T09:28Z
TLE epoch observation values (Epoch: 2025-10-27T09:28:06.763Z)
Latitude
0.00001°
Longitude
-87.06757°
Altitude
780.521 km
Speed
7.464 km/s
True Right ascension
06h 03m 49s
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
20:37:36
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
775.986 km
Perigee altitude
773.272 km
Semi-major axis
7,152.766 km
Eccentricity
0.00019
Inclination
86.3929°
RAAN
90.9576°
Arg. of periapsis
81.8937°
True anomaly
278.22589°
Mean anomaly
278.2474°
Eccentric anomaly
278.23664°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.000080505
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Other satellites on launch #39 in the year 2017 (2017-06-25 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 123 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 | 2025-10-28 10:41:30.640Z | 180.784° SSW | 2025-10-28 10:46:30.640Z | 4.101° NNE | 44.662° | 2025-10-28 10:50:30.640Z | 2.503° NNE |
| 7 mins | 2025-10-28 21:13:30.640Z | 35.174° NE | 2025-10-28 21:16:30.640Z | 77.687° E | 21.146° | 2025-10-28 21:20:30.640Z | 129.061° SE |
| 7 mins | 2025-10-28 22:54:30.640Z | 328.879° NNW | 2025-10-28 22:57:30.640Z | 269.914° W | 31.858° | 2025-10-28 23:01:30.640Z | 210.408° SW |
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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