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: 17 hours ago
TLE from 17 hours ago
0 IRIDIUM 137
1 43076U 17083G 26082.67244029 .00000281 00000-0 93127-4 0 9998
2 43076 86.4033 357.8978 0002648 87.0780 273.0719 14.34216515431912Epoch: 2026-03-23T16:08Z
TLE epoch observation values (Epoch: 2026-03-23T16:08:18.841Z)
Latitude
0.00002°
Longitude
-65.34179°
Altitude
780.621 km
Speed
7.464 km/s
True Right ascension
23h 51m 35s
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
14:02:32
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.53 km
Perigee altitude
772.742 km
Semi-major axis
7,152.773 km
Eccentricity
0.00026
Inclination
86.4033°
RAAN
357.8978°
Arg. of periapsis
87.078°
True anomaly
273.0416°
Mean anomaly
273.0719°
Eccentric anomaly
273.05675°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.000093127
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-03-24 17:24:36.665Z | 103.99° ESE | 2026-03-24 17:26:36.665Z | 80.901° E | 12.832° | 2026-03-24 17:28:36.665Z | 56.765° ENE |
| 8 mins | 2026-03-24 19:03:36.665Z | 195.653° SSW | 2026-03-24 19:06:36.665Z | 249.326° W | 42.136° | 2026-03-24 19:11:36.665Z | 355.918° N |
| 7 mins | 2026-03-25 05:34:36.665Z | 33.486° NE | 2026-03-25 05:37:36.665Z | 86.301° E | 26.742° | 2026-03-25 05:41:36.665Z | 140.055° SSE |
| 7 mins | 2026-03-25 07:14:36.665Z | 327.128° NNW | 2026-03-25 07:17:36.665Z | 283.585° WNW | 25.378° | 2026-03-25 07:21:36.665Z | 223.555° SW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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