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, 4.7 m
Radar Cross Section
14.423 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 25260.62646983 .00000009 00000-0 -39413-5 0 9992
2 42804 86.3926 107.6010 0002314 89.6710 270.4751 14.34217613430881Epoch: 2025-09-17T15:02Z
TLE epoch observation values (Epoch: 2025-09-17T15:02:06.993Z)
Latitude
-0.00001°
Longitude
-114.72785°
Altitude
780.705 km
Speed
7.463 km/s
True Right ascension
07h 10m 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
00:19:58
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.287 km
Perigee altitude
772.977 km
Semi-major axis
7,152.769 km
Eccentricity
0.00023
Inclination
86.3926°
RAAN
107.601°
Arg. of periapsis
89.671°
True anomaly
270.44858°
Mean anomaly
270.4751°
Eccentric anomaly
270.46184°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
-0.0000039413
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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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2025-09-18 14:36:32.076Z | 191.489° SSW | 2025-09-18 14:39:32.076Z | 245.576° WSW | 43.486° | 2025-09-18 14:44:32.076Z | 358.006° N |
| 7 mins | 2025-09-19 01:07:32.076Z | 36.101° NE | 2025-09-19 01:10:32.076Z | 87.022° E | 24.891° | 2025-09-19 01:14:32.076Z | 137.896° SSE |
| 7 mins | 2025-09-19 02:47:32.076Z | 328.462° NNW | 2025-09-19 02:50:32.076Z | 282.853° WNW | 27.207° | 2025-09-19 02:54:32.076Z | 220.471° 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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