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: 20 hours ago
TLE from 20 hours ago
0 IRIDIUM 123
1 42804U 17039B 25260.06832156 .00000013 00000-0 -25896-5 0 9994
2 42804 86.3927 107.8346 0002303 89.9685 270.1775 14.34217685430802Epoch: 2025-09-17T01:38Z
TLE epoch observation values (Epoch: 2025-09-17T01:38:22.982Z)
Latitude
-0.00001°
Longitude
86.98926°
Altitude
780.714 km
Speed
7.463 km/s
True Right ascension
07h 11m 20s
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
14:11:32
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.279 km
Perigee altitude
772.985 km
Semi-major axis
7,152.769 km
Eccentricity
0.00023
Inclination
86.3927°
RAAN
107.8346°
Arg. of periapsis
89.9685°
True anomaly
270.15111°
Mean anomaly
270.1775°
Eccentric anomaly
270.1643°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
-0.0000025896
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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 | 2025-09-18 01:39:46.622Z | 11.559° NNE | 2025-09-18 01:43:46.622Z | 81.196° E | 37.988° | 2025-09-18 01:48:46.622Z | 160.135° S |
| 4 mins | 2025-09-18 03:22:46.622Z | 298.783° NW | 2025-09-18 03:23:46.622Z | 285.06° WNW | 16.375° | 2025-09-18 03:26:46.622Z | 246.56° WSW |
| 9 mins | 2025-09-18 14:35:46.622Z | 189.699° SSW | 2025-09-18 14:39:46.622Z | 270.381° WNW | 43.796° | 2025-09-18 14:44:46.622Z | 358.365° 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
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