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IRIDIUM 171, 43929

Orbit data source: Space-Track

IRIDIUM 171, 43929 is a payload satellite owned by Iridium (US) in LEO that was launched on Fri, 11 Jan 2019 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/43929?theme=dark&initialShowStats=false

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Identifier

43929, 2019-002H

Orbit

LEO

Country

Related business

Iridium Communications Inc. (US)

Manufacturer

NGIS SSG Gilbert

Mission

Operational Commercial Communications

Bus & Motor

ELITEBUS, Unknown motor

Mass

860 kg wet, 700 kg dry

Launch date (UTC)

2019-01-11 (7 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: 9 hours ago

TLE from 9 hours ago

0 IRIDIUM 171
1 43929U 19002H   26078.92739583  .00000009  00000-0 -39901-5 0  9995
2 43929  86.3998  31.1583 0002097  90.5956 269.5480 14.34217495376162

Epoch: 2026-03-19T22:15Z

TLE epoch observation values (Epoch: 2026-03-19T22:15:26.999Z)

Latitude

-0.00005°

Longitude

-120.17399°

Altitude

780.731 km

Speed

7.463 km/s

True Right ascension

02h 04m 37s

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

12:08:48

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

776.132 km

Perigee altitude

773.132 km

Semi-major axis

7,152.769 km

Eccentricity

0.00021

Inclination

86.3998°

RAAN

31.1583°

Arg. of periapsis

90.5956°

True anomaly

269.52397°

Mean anomaly

269.548°

Eccentric anomaly

269.53599°

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

-0.0000039901

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Other satellites on launch #2 in the year 2019 (2019-01-11 UTC)

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IRIDIUM 171 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	2026-03-20 08:52:55.450Z	359.415° N	2026-03-20 08:56:55.450Z	25.959° NE	44.305°	2026-03-20 09:01:55.450Z	176.311° S
5 mins	2026-03-20 20:10:55.450Z	108.755° ESE	2026-03-20 20:12:55.450Z	80.109° E	18.585°	2026-03-20 20:15:55.450Z	40.918° NE
8 mins	2026-03-20 21:49:55.450Z	212.804° SW	2026-03-20 21:52:55.450Z	266.113° W	34.836°	2026-03-20 21:57:55.450Z	348.318° N

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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 171, 43929 on other resources

View IRIDIUM 171, 43929 on NASA - NSSDCA Website

View IRIDIUM 171, 43929 on Heavens-Above

View IRIDIUM 171, 43929 on Keep Track

View IRIDIUM 171, 43929 on Celestrak

View IRIDIUM 171, 43929 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 171, 43929

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2026-03-19T22:15:26.999Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #2 in the year 2019 (2019-01-11 UTC)

IRIDIUM 171 Visibility forecast

Co-orbital & Co-planar RSOs

Check out IRIDIUM 171, 43929 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 9 hours ago