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IRIDIUM 123, 42804

Orbit data source: Space-Track

IRIDIUM 123, 42804 is a payload satellite owned by Iridium (US) in LEO that was launched on Sun, 25 Jun 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/42804?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/42804?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

42804, 2017-039B

Orbit

LEO

Last TLE update

19 hours ago

Origin

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)

2017-06-25 (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, 9.4 m

Radar Cross Section

14.423 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 19 hours ago

0 IRIDIUM 123
1 42804U 17039B   25193.57892321  .00000037  00000-0  62569-5 0  9998
2 42804  86.3999 135.6157 0002107  76.3869 283.7562 14.34217638421279

Epoch: 2025-07-12T13:53Z

TLE epoch observation values (Epoch: 2025-07-12T13:53:38.965Z)

Latitude

0.00005°

Longitude

-3.51113°

Altitude

780.36 km

Speed

7.464 km/s

True Right ascension

09h 02m 27s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

39.19914°

Longitude

173.23143°

Altitude

782.702 km

Speed

7.466 km/s

Apparent Right ascension

17h 47m 02s

Apparent Declination

23° 04' 54"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

21:23:32

Azimuth

266.529° W

Elevation

41.684°

Doppler factor

Orbital elements

Apogee altitude

776.139 km

Perigee altitude

773.125 km

Semi-major axis

7,152.769 km

Eccentricity

0.00021

Inclination

86.3999°

RAAN

135.6157°

Arg. of periapsis

76.3869°

True anomaly

Unknown

Mean anomaly

283.7562°

Eccentric anomaly

Unknown

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.0000062569

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Other satellites on launch #39 in the year 2017 (2017-06-25 UTC)

IRIDIUM 123 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.
4 mins	2025-07-13 08:58:01.647Z	265.801° W	2025-07-13 08:58:01.647Z	265.801° W	33.524°	2025-07-13 09:02:01.647Z	207.158° SW
8 mins	2025-07-13 20:10:01.647Z	148.27° SSE	2025-07-13 20:13:01.647Z	92.531° ESE	34.738°	2025-07-13 20:18:01.647Z	16.213° NNE
5 mins	2025-07-13 21:52:01.647Z	252.857° W	2025-07-13 21:54:01.647Z	281.533° WNW	18.885°	2025-07-13 21:57:01.647Z	322.187° NNW
8 mins	2025-07-14 08:21:01.647Z	353.13° N	2025-07-14 08:24:01.647Z	312.704° NW	44.027°	2025-07-14 08:29:01.647Z	184.02° SSW

Authenticating...

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Check out IRIDIUM 123, 42804 on other resources

View IRIDIUM 123, 42804 on NASA - NSSDCA Website

View IRIDIUM 123, 42804 on Heavens-Above

View IRIDIUM 123, 42804 on Keep Track

View IRIDIUM 123, 42804 on Celestrak

View IRIDIUM 123, 42804 on Gunter's Space Page

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