IRIDIUM 161, 43478
Orbit data source: Space-Track
IRIDIUM 161, 43478 is a payload satellite owned by Iridium (US) in LEO that was launched on Tue, 22 May 2018 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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43478 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: 13 hours ago
TLE from 13 hours ago
0 IRIDIUM 161
1 43478U 18047C 25328.01904971 .00000414 00000-0 11697-3 0 9993
2 43478 86.4516 174.1970 0002147 80.7719 279.3724 14.43282436395540Epoch: 2025-11-24T00:27Z
TLE epoch observation values (Epoch: 2025-11-24T00:27:25.894Z)
Latitude
-0.00012°
Longitude
104.11407°
Altitude
750.49 km
Speed
7.479 km/s
True Right ascension
11h 36m 47s
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
10:48:54
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
746.154 km
Perigee altitude
743.095 km
Semi-major axis
7,122.761 km
Eccentricity
0.00021
Inclination
86.4516°
RAAN
174.197°
Arg. of periapsis
80.7719°
True anomaly
279.34812°
Mean anomaly
279.3724°
Eccentric anomaly
279.36026°
Mean motion
3.61053 °/min
Orbital period
99.71 mins
BSTAR
0.00011697
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Other satellites on launch #47 in the year 2018 (2018-05-22 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 161 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 | 2025-11-24 13:53:20.023Z | 149.7° SSE | 2025-11-24 13:57:20.023Z | 82.538° E | 32.271° | 2025-11-24 14:01:20.023Z | 20.827° NNE |
| 5 mins | 2025-11-24 15:35:20.023Z | 250.081° W | 2025-11-24 15:37:20.023Z | 280.52° WNW | 19.874° | 2025-11-24 15:40:20.023Z | 323.42° NNW |
| 8 mins | 2025-11-25 02:00:20.023Z | 359.818° N | 2025-11-25 02:03:20.023Z | 17.483° NNE | 44.043° | 2025-11-25 02:08:20.023Z | 176.861° S |
| 5 mins | 2025-11-25 13:13:20.023Z | 105.602° ESE | 2025-11-25 13:15:20.023Z | 77.455° E | 16.718° | 2025-11-25 13:18:20.023Z | 40.11° NE |
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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