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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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Iframe URL

https://www.satcat.com/sats-embedded/43076?theme=dark&initialShowStats=false

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Identifier

43076, 2017-083G

Orbit

LEO

Country

Related business

Iridium Communications Inc. (US)

Manufacturer

OATK SSG Gilbert

Mission

Operational Commercial Communications

Bus & Motor

ELITEBUS, Unknown motor

Mass

860 kg wet, 700 kg dry

Launch date (UTC)

2017-12-23 (8 years ago)

Launch vehicle

FALCON 9

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Trap Box + 2 Pan, 4.8 m

Radar Cross Section

10.154 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 7 hours ago

TLE from 7 hours ago

0 IRIDIUM 137
1 43076U 17083G   26108.90540765  .00000175  00000-0  55519-4 0  9994
2 43076  86.4002 346.9459 0002340  73.1635 286.9817 14.34219318435678

Epoch: 2026-04-18T21:43Z

TLE epoch observation values (Epoch: 2026-04-18T21:43:47.220Z)

Latitude

-0.00008°

Longitude

173.9816°

Altitude

780.224 km

Speed

7.464 km/s

True Right ascension

23h 07m 47s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

11:32:24

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

776.3 km

Perigee altitude

772.953 km

Semi-major axis

7,152.763 km

Eccentricity

0.00023

Inclination

86.4002°

RAAN

346.9459°

Arg. of periapsis

73.1635°

True anomaly

286.95605°

Mean anomaly

286.9817°

Eccentric anomaly

286.96888°

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.000055519

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Other satellites on launch #83 in the year 2017 (2017-12-23 UTC)

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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	2026-04-19 05:00:39.190Z	329.087° NNW	2026-04-19 05:04:39.190Z	275.048° WNW	22.84°	2026-04-19 05:07:39.190Z	232.171° WSW
8 mins	2026-04-19 16:16:39.190Z	172.913° S	2026-04-19 16:19:39.190Z	133.106° SE	43.516°	2026-04-19 16:24:39.190Z	6.237° NNE
6 mins	2026-04-20 02:47:39.190Z	41.446° NE	2026-04-20 02:50:39.190Z	83.027° E	18.202°	2026-04-20 02:53:39.190Z	119.908° SE
8 mins	2026-04-20 04:27:39.190Z	338.411° N	2026-04-20 04:31:39.190Z	256.997° W	34.992°	2026-04-20 04:35:39.190Z	203.234° SW

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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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Check out IRIDIUM 137, 43076 on other resources

View IRIDIUM 137, 43076 on NASA - NSSDCA Website

View IRIDIUM 137, 43076 on Heavens-Above

View IRIDIUM 137, 43076 on Keep Track

View IRIDIUM 137, 43076 on Celestrak

View IRIDIUM 137, 43076 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

IRIDIUM 137, 43076

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 7 hours ago

TLE from 7 hours ago

TLE epoch observation values (Epoch: 2026-04-18T21:43:47.220Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #83 in the year 2017 (2017-12-23 UTC)

IRIDIUM 137 Visibility forecast

Co-orbital & Co-planar RSOs

Check out IRIDIUM 137, 43076 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 7 hours ago