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: 20 hours ago
TLE from 20 hours ago
0 IRIDIUM 123
1 42804U 17039B 25312.81331887 .00000196 00000-0 62880-4 0 9994
2 42804 86.3944 85.7626 0001803 89.3414 270.7989 14.34219135438368Epoch: 2025-11-08T19:31Z
TLE epoch observation values (Epoch: 2025-11-08T19:31:10.750Z)
Latitude
0.00005°
Longitude
104.73027°
Altitude
780.696 km
Speed
7.464 km/s
True Right ascension
05h 43m 03s
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
12:15:59
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
775.917 km
Perigee altitude
773.337 km
Semi-major axis
7,152.764 km
Eccentricity
0.00018
Inclination
86.3944°
RAAN
85.7626°
Arg. of periapsis
89.3414°
True anomaly
270.77824°
Mean anomaly
270.7989°
Eccentric anomaly
270.78857°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.00006288
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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 | 2025-11-09 21:13:09.229Z | 354.923° N | 2025-11-09 21:17:09.229Z | 280.78° WNW | 44.688° | 2025-11-09 21:22:09.229Z | 182.662° SSW |
| 6 mins | 2025-11-10 08:30:09.229Z | 120.502° SE | 2025-11-10 08:33:09.229Z | 74.914° E | 21.438° | 2025-11-10 08:36:09.229Z | 35.511° NE |
| 7 mins | 2025-11-10 10:10:09.229Z | 221.846° SW | 2025-11-10 10:13:09.229Z | 276.237° WNW | 31.225° | 2025-11-10 10:17:09.229Z | 340.957° N |
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
Authenticating...
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