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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 src="https://www.satcat.com/sats-embedded/43076?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

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

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ISO8601 Format

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, 4.7 m

Radar Cross Section

14.423 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 14 hours ago

TLE from 14 hours ago

0 IRIDIUM 137
1 43076U 17083G   25243.11114880  .00000021  00000-0  46082-6 0  9998
2 43076  86.3909  83.4183 0002528  78.4320 281.7159 14.34217498402591

Epoch: 2025-08-31T02:40Z

TLE epoch observation values (Epoch: 2025-08-31T02:40:03.256Z)

Latitude

-0.00006°

Longitude

63.86894°

Altitude

780.352 km

Speed

7.464 km/s

True Right ascension

05h 33m 40s

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

08:00:47

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

776.441 km

Perigee altitude

772.824 km

Semi-major axis

7,152.77 km

Eccentricity

0.00025

Inclination

86.3909°

RAAN

83.4183°

Arg. of periapsis

78.432°

True anomaly

281.68753°

Mean anomaly

281.7159°

Eccentric anomaly

281.70172°

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

4.6082e-7

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

IRIDIUM 137 Visibility forecast

Observer location: undefined°, undefined°
Set Observer location

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	2025-09-01 01:00:52.080Z	15.244° NNE	2025-09-01 01:04:52.080Z	78.639° E	34.014°	2025-09-01 01:09:52.080Z	153.912° SSE
6 mins	2025-09-01 02:42:52.080Z	314.327° NW	2025-09-01 02:45:52.080Z	271.26° WNW	19.136°	2025-09-01 02:48:52.080Z	234.577° WSW
9 mins	2025-09-01 13:56:52.080Z	182.088° SSW	2025-09-01 14:00:52.080Z	210.086° SW	44.915°	2025-09-01 14:05:52.080Z	1.979° NNE