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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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, 4.8 m
Radar Cross Section
10.154 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 14 hours ago
TLE from 14 hours ago
0 IRIDIUM 137
1 43076U 17083G 26033.48563273 .00000279 00000-0 92461-4 0 9995
2 43076 86.3970 18.4389 0001708 89.4580 270.6812 14.34215466424864Epoch: 2026-02-02T11:39Z
TLE epoch observation values (Epoch: 2026-02-02T11:39:18.667Z)
Latitude
0°
Longitude
70.93088°
Altitude
780.711 km
Speed
7.463 km/s
True Right ascension
01h 13m 45s
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
03:30:38
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
775.861 km
Perigee altitude
773.418 km
Semi-major axis
7,152.776 km
Eccentricity
0.00017
Inclination
86.397°
RAAN
18.4389°
Arg. of periapsis
89.458°
True anomaly
270.66163°
Mean anomaly
270.6812°
Eccentric anomaly
270.67141°
Mean motion
3.58782 °/min
Orbital period
100.34 mins
BSTAR
0.000092461
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-02-03 10:00:06.141Z | 27.079° NE | 2026-02-03 10:04:06.141Z | 79.775° E | 21.567° | 2026-02-03 10:07:06.141Z | 122.174° SE |
| 8 mins | 2026-02-03 11:41:06.141Z | 335.239° NNW | 2026-02-03 11:45:06.141Z | 266.811° W | 31.2° | 2026-02-03 11:49:06.141Z | 210.559° SW |
| 8 mins | 2026-02-03 22:57:06.141Z | 152.533° SSE | 2026-02-03 23:00:06.141Z | 93.454° ESE | 37.041° | 2026-02-03 23:05:06.141Z | 14.257° NNE |
| 5 mins | 2026-02-04 00:39:06.141Z | 254.669° W | 2026-02-04 00:41:06.141Z | 281.673° WNW | 17.222° | 2026-02-04 00:44:06.141Z | 320.672° NNW |
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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