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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 URL

https://www.satcat.com/sats-embedded/42804?theme=dark&initialShowStats=false

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Identifier

42804, 2017-039B

Orbit

LEO

Last TLE update

15 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 15 hours ago

0 IRIDIUM 123
1 42804U 17039B   25181.43920122  .00000059  00000-0  13956-4 0  9990
2 42804  86.3991 140.6841 0002371  77.8953 282.2508 14.34217836419530

Epoch: 2025-06-30T10:32Z

TLE epoch observation values (Epoch: 2025-06-30T10:32:26.985Z)

Latitude

-0.00005°

Longitude

63.82267°

Altitude

780.358 km

Speed

7.464 km/s

True Right ascension

09h 22m 44s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-27.93185°

Longitude

61.66081°

Altitude

788.602 km

Speed

7.458 km/s

Apparent Right ascension

06h 02m 01s

Apparent Declination

-52° 59' 40"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

13:05:51

Azimuth

228.817° WSW

Elevation

-39.743°

Doppler factor

Orbital elements

Apogee altitude

776.327 km

Perigee altitude

772.935 km

Semi-major axis

7,152.768 km

Eccentricity

0.00024

Inclination

86.3991°

RAAN

140.6841°

Arg. of periapsis

77.8953°

True anomaly

Unknown

Mean anomaly

282.2508°

Eccentric anomaly

Unknown

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.000013956

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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.
9 mins	2025-07-01 08:52:52.494Z	13.222° NNE	2025-07-01 08:57:52.494Z	97.898° ESE	33.581°	2025-07-01 09:01:52.494Z	152.32° SSE
5 mins	2025-07-01 10:35:52.494Z	307.134° NW	2025-07-01 10:37:52.494Z	277.47° WNW	19.308°	2025-07-01 10:40:52.494Z	238.072° WSW
8 mins	2025-07-01 21:49:52.494Z	182.525° SSW	2025-07-01 21:53:52.494Z	353.332° N	43.86°	2025-07-01 21:57:52.494Z	1.72° NNE

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.