IRIDIUM 137, 43076
Orbit data source: Space-Track
IRIDIUM 137, 43076 is a payload satellite owned by Iridium (US) in LEO that was launched on Sat, 23 Dec 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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43076 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: 11 hours ago
TLE from 11 hours ago
0 IRIDIUM 137
1 43076U 17083G 26263.02406413 .00000115 00000-0 33956-4 0 9995
2 43076 86.3916 282.5142 0002007 97.9943 262.1481 14.34217760457767Epoch: 2026-09-20T00:34Z
TLE epoch observation values (Epoch: 2026-09-20T00:34:39.140Z)
Latitude
-0°
Longitude
-85.07307°
Altitude
780.915 km
Speed
7.463 km/s
True Right ascension
18h 50m 03s
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
04:22:24
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.067 km
Perigee altitude
773.196 km
Semi-major axis
7,152.769 km
Eccentricity
0.0002
Inclination
86.3916°
RAAN
282.5142°
Arg. of periapsis
97.9943°
True anomaly
262.12532°
Mean anomaly
262.1481°
Eccentric anomaly
262.13671°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.000033956
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Other satellites on launch #83 in the year 2017 (2017-12-23 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 137 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 | 2026-09-20 12:52:24.280Z | 17.904° NNE | 2026-09-20 12:56:24.280Z | 72.595° E | 34.402° | 2026-09-20 13:01:24.280Z | 146.344° SSE |
| 7 mins | 2026-09-20 14:34:24.280Z | 320.644° NNW | 2026-09-20 14:37:24.280Z | 275.163° WNW | 25.191° | 2026-09-20 14:41:24.280Z | 224.168° SW |
| 8 mins | 2026-09-21 01:49:24.280Z | 172.453° S | 2026-09-21 01:52:24.280Z | 128.699° SE | 72.147° | 2026-09-21 01:57:24.280Z | 6.378° NNE |
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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