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: 6 hours ago
TLE from 6 hours ago
0 IRIDIUM 123
1 42804U 17039B 25346.99989311 .00000476 00000-0 16293-3 0 9998
2 42804 86.3965 71.4707 0002069 105.4385 254.7039 14.34220453443263Epoch: 2025-12-12T23:59Z
TLE epoch observation values (Epoch: 2025-12-12T23:59:50.764Z)
Latitude
-0.00008°
Longitude
-10.42427°
Altitude
781.1 km
Speed
7.463 km/s
True Right ascension
04h 45m 52s
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
04:53:04
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.103 km
Perigee altitude
773.143 km
Semi-major axis
7,152.76 km
Eccentricity
0.00021
Inclination
86.3965°
RAAN
71.4707°
Arg. of periapsis
105.4385°
True anomaly
254.68103°
Mean anomaly
254.7039°
Eccentric anomaly
254.69247°
Mean motion
3.58784 °/min
Orbital period
100.34 mins
BSTAR
0.00016293
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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 | 2025-12-13 06:48:45.372Z | 201.525° SSW | 2025-12-13 06:52:45.372Z | 267.969° W | 38.547° | 2025-12-13 06:57:45.372Z | 351.974° N |
| 8 mins | 2025-12-13 17:19:45.372Z | 21.092° NNE | 2025-12-13 17:23:45.372Z | 92.894° ESE | 31.133° | 2025-12-13 17:27:45.372Z | 147.845° SSE |
| 6 mins | 2025-12-13 19:01:45.372Z | 310.347° NW | 2025-12-13 19:03:45.372Z | 279.23° WNW | 21.406° | 2025-12-13 19:07:45.372Z | 227.877° WSW |
| 8 mins | 2025-12-14 06:15:45.372Z | 176.907° S | 2025-12-14 06:19:45.372Z | 31.219° NE | 44.077° | 2025-12-14 06:23:45.372Z | 4.596° NNE |
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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