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, 4.7 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 161
1 43478U 18047C 25260.07483417 .00000335 00000-0 93687-4 0 9993
2 43478 86.4543 202.5431 0002160 87.6442 272.5006 14.43281834385742Epoch: 2025-09-17T01:47Z
TLE epoch observation values (Epoch: 2025-09-17T01:47:45.672Z)
Latitude
-0.00003°
Longitude
179.3468°
Altitude
750.674 km
Speed
7.479 km/s
True Right ascension
13h 30m 10s
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
14:13:08
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
746.165 km
Perigee altitude
743.088 km
Semi-major axis
7,122.763 km
Eccentricity
0.00022
Inclination
86.4543°
RAAN
202.5431°
Arg. of periapsis
87.6442°
True anomaly
272.47587°
Mean anomaly
272.5006°
Eccentric anomaly
272.48824°
Mean motion
3.61053 °/min
Orbital period
99.71 mins
BSTAR
0.000093687
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-09-17 21:54:22.242Z | 240.893° WSW | 2025-09-17 21:57:22.242Z | 283.89° WNW | 19.969° | 2025-09-17 22:00:22.242Z | 325.468° NNW |
| 8 mins | 2025-09-18 08:20:22.242Z | 0.217° NNE | 2025-09-18 08:23:22.242Z | 34.742° NE | 44.635° | 2025-09-18 08:28:22.242Z | 176.761° S |
| 4 mins | 2025-09-18 19:33:22.242Z | 103.063° ESE | 2025-09-18 19:35:22.242Z | 74.525° E | 16.554° | 2025-09-18 19:37:22.242Z | 48.173° ENE |
| 8 mins | 2025-09-18 21:11:22.242Z | 209.012° SW | 2025-09-18 21:14:22.242Z | 264.695° W | 36.344° | 2025-09-18 21:19:22.242Z | 350.162° 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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