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IRIDIUM 129, 42958

Orbit data source: Space-Track

IRIDIUM 129, 42958 is a payload satellite owned by Iridium (US) in LEO that was launched on Mon, 09 Oct 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/42958?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

42958, 2017-061D

Orbit

LEO

Last TLE update

2 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)

2017-10-09 (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 2 hours ago

0 IRIDIUM 129
1 42958U 17061D   25186.89725449  .00000218  00000-0  70704-4 0  9996
2 42958  86.3999 169.9818 0002639  93.2038 266.9460 14.34218384405168

Epoch: 2025-07-05T21:32Z

TLE epoch observation values (Epoch: 2025-07-05T21:32:02.787Z)

Latitude

-0.00003°

Longitude

-77.15852°

Altitude

780.817 km

Speed

7.463 km/s

True Right ascension

11h 19m 55s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

4.63467°

Longitude

102.50749°

Altitude

779.983 km

Speed

7.464 km/s

Apparent Right ascension

23h 34m 33s

Apparent Declination

-16° 15' 13"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

11:57:49

Azimuth

13.734° NNE

Elevation

-65.802°

Doppler factor

Orbital elements

Apogee altitude

776.517 km

Perigee altitude

772.742 km

Semi-major axis

7,152.766 km

Eccentricity

0.00026

Inclination

86.3999°

RAAN

169.9818°

Arg. of periapsis

93.2038°

True anomaly

Unknown

Mean anomaly

266.946°

Eccentric anomaly

Unknown

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.000070704

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Other satellites on launch #61 in the year 2017 (2017-10-09 UTC)

IRIDIUM 129 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.
5 mins	2025-07-06 09:51:22.497Z	44.115° NE	2025-07-06 09:53:22.497Z	70.063° E	16.837°	2025-07-06 09:56:22.497Z	109.826° ESE
8 mins	2025-07-06 11:31:22.497Z	339.994° N	2025-07-06 11:34:22.497Z	288.903° WNW	36.969°	2025-07-06 11:39:22.497Z	199.773° SSW
7 mins	2025-07-06 22:47:22.497Z	138.588° SSE	2025-07-06 22:50:22.497Z	81.463° E	30.953°	2025-07-06 22:54:22.497Z	22.5° NE

Authenticating...

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Check out IRIDIUM 129, 42958 on other resources

View IRIDIUM 129, 42958 on NASA - NSSDCA Website

View IRIDIUM 129, 42958 on Heavens-Above

View IRIDIUM 129, 42958 on Keep Track

View IRIDIUM 129, 42958 on Celestrak

View IRIDIUM 129, 42958 on Gunter's Space Page

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