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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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: 12 hours ago
TLE from 12 hours ago
0 IRIDIUM 161
1 43478U 18047C 26091.00375456 .00000292 00000-0 80667-4 0 9998
2 43478 86.4460 120.7547 0002175 84.8304 275.3145 14.43287512414007Epoch: 2026-04-01T00:05Z
TLE epoch observation values (Epoch: 2026-04-01T00:05:24.393Z)
Latitude
-0.00006°
Longitude
-69.96976°
Altitude
750.578 km
Speed
7.479 km/s
True Right ascension
08h 03m 01s
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
18:02:59
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
746.157 km
Perigee altitude
743.059 km
Semi-major axis
7,122.745 km
Eccentricity
0.00022
Inclination
86.446°
RAAN
120.7547°
Arg. of periapsis
84.8304°
True anomaly
275.28968°
Mean anomaly
275.3145°
Eccentric anomaly
275.30209°
Mean motion
3.61054 °/min
Orbital period
99.71 mins
BSTAR
0.000080667
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-04-01 13:57:57.044Z | 1.056° NNE | 2026-04-01 14:02:57.044Z | 100.03° ESE | 44.051° | 2026-04-01 14:06:57.044Z | 171.936° S |
| 4 mins | 2026-04-02 01:12:57.044Z | 97.799° ESE | 2026-04-02 01:13:57.044Z | 84.455° E | 14.88° | 2026-04-02 01:16:57.044Z | 46.341° ENE |
| 7 mins | 2026-04-02 02:50:57.044Z | 206.322° SW | 2026-04-02 02:53:57.044Z | 277.135° WNW | 38.971° | 2026-04-02 02:57:57.044Z | 349.867° 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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