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: 2 days ago
TLE from 2 days ago
0 IRIDIUM 161
1 43478U 18047C 26171.28888392 .00000286 00000-0 78987-4 0 9990
2 43478 86.4482 87.1745 0002568 83.3146 276.8347 14.43280100425582Epoch: 2026-06-20T06:55Z
TLE epoch observation values (Epoch: 2026-06-20T06:55:59.570Z)
Latitude
-0.00005°
Longitude
74.67064°
Altitude
750.529 km
Speed
7.479 km/s
True Right ascension
05h 48m 41s
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
21:49:47
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
746.461 km
Perigee altitude
742.803 km
Semi-major axis
7,122.769 km
Eccentricity
0.00026
Inclination
86.4482°
RAAN
87.1745°
Arg. of periapsis
83.3146°
True anomaly
276.80548°
Mean anomaly
276.8347°
Eccentric anomaly
276.82009°
Mean motion
3.61052 °/min
Orbital period
99.71 mins
BSTAR
0.000078987
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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 | 2026-06-22 18:57:43.487Z | 189.48° SSW | 2026-06-22 19:00:43.487Z | 226.789° WSW | 43.08° | 2026-06-22 19:05:43.487Z | 358.371° N |
| 6 mins | 2026-06-23 05:24:43.487Z | 35.938° NE | 2026-06-23 05:27:43.487Z | 82.171° E | 21.967° | 2026-06-23 05:30:43.487Z | 125.184° SE |
| 7 mins | 2026-06-23 07:04:43.487Z | 328.278° NNW | 2026-06-23 07:07:43.487Z | 273.44° WNW | 29.642° | 2026-06-23 07:11:43.487Z | 213.379° SW |
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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