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IRIDIUM 173, 43925

Orbit data source: Space-Track

IRIDIUM 173, 43925 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 src="https://www.satcat.com/sats-embedded/43925?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/43925?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

43925, 2019-002D

Orbit

LEO

Last TLE update

13 hours ago

Origin

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 (6 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, 9.4 m

Radar Cross Section

14.423 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 13 hours ago

0 IRIDIUM 173
1 43925U 19002D   25181.90221063  .00000068  00000-0  17307-4 0  9991
2 43925  86.3989 140.4246 0002458  83.9275 276.2200 14.34218010338605

Epoch: 2025-06-30T21:39Z

TLE epoch observation values (Epoch: 2025-06-30T21:39:10.998Z)

Latitude

-0.0001°

Longitude

-103.57659°

Altitude

780.527 km

Speed

7.464 km/s

True Right ascension

09h 21m 41s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

12.12086°

Longitude

75.43555°

Altitude

779.821 km

Speed

7.465 km/s

Apparent Right ascension

20h 11m 30s

Apparent Declination

-49° 03' 44"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

21:47:38

Azimuth

195.482° SSW

Elevation

-1.475°

Doppler factor

Orbital elements

Apogee altitude

776.389 km

Perigee altitude

772.873 km

Semi-major axis

7,152.768 km

Eccentricity

0.00025

Inclination

86.3989°

RAAN

140.4246°

Arg. of periapsis

83.9275°

True anomaly

Unknown

Mean anomaly

276.22°

Eccentric anomaly

Unknown

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.000017307

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

IRIDIUM 173 Visibility forecast

Observer location: undefined°, undefined°

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	2025-07-01 21:12:13.944Z	154.068° SSE	2025-07-01 21:17:13.944Z	75.505° E	33.006°	2025-07-01 21:21:13.944Z	19.458° NNE
6 mins	2025-07-01 22:55:13.944Z	246.189° WSW	2025-07-01 22:58:13.944Z	290.388° WNW	19.822°	2025-07-01 23:01:13.944Z	328.345° NNW
9 mins	2025-07-02 09:23:13.944Z	356.098° N	2025-07-02 09:28:13.944Z	214.901° SW	44.633°	2025-07-02 09:32:13.944Z	181.664° SSW

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Check out IRIDIUM 173, 43925 on other resources

View IRIDIUM 173, 43925 on NASA - NSSDCA Website

View IRIDIUM 173, 43925 on Heavens-Above

View IRIDIUM 173, 43925 on Keep Track

View IRIDIUM 173, 43925 on Celestrak

View IRIDIUM 173, 43925 on Gunter's Space Page

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