IRIDIUM 122, 42957
Orbit data source: Space-Track
IRIDIUM 122, 42957 is a payload satellite owned by Iridium (US) in LEO that was launched on Mon, 09 Oct 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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42957 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: 13 hours ago
TLE from 13 hours ago
0 IRIDIUM 122
1 42957U 17061C 25258.73345567 .00000155 00000-0 48189-4 0 9999
2 42957 86.3999 139.9449 0002202 86.3113 273.8334 14.34218214415448Epoch: 2025-09-15T17:36Z
TLE epoch observation values (Epoch: 2025-09-15T17:36:10.569Z)
Latitude
-0.00011°
Longitude
-119.03302°
Altitude
780.612 km
Speed
7.464 km/s
True Right ascension
09h 19m 46s
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
23:04:28
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.205 km
Perigee altitude
773.055 km
Semi-major axis
7,152.767 km
Eccentricity
0.00022
Inclination
86.3999°
RAAN
139.9449°
Arg. of periapsis
86.3113°
True anomaly
273.80822°
Mean anomaly
273.8334°
Eccentric anomaly
273.82081°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.000048189
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Other satellites on launch #61 in the year 2017 (2017-10-09 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 122 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-09-16 15:31:06.532Z | 112.988° SE | 2025-09-16 15:34:06.532Z | 73.292° E | 16.842° | 2025-09-16 15:36:06.532Z | 47.672° ENE |
| 8 mins | 2025-09-16 17:10:06.532Z | 205.636° SW | 2025-09-16 17:14:06.532Z | 282.881° WNW | 37.158° | 2025-09-16 17:18:06.532Z | 348.083° N |
| 8 mins | 2025-09-17 03:41:06.532Z | 22.176° NNE | 2025-09-17 03:44:06.532Z | 74.617° E | 32.738° | 2025-09-17 03:49:06.532Z | 151.646° SSE |
| 6 mins | 2025-09-17 05:22:06.532Z | 316.709° NNW | 2025-09-17 05:25:06.532Z | 273.354° WNW | 20.157° | 2025-09-17 05:28:06.532Z | 234.612° WSW |
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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