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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

13 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 13 hours ago

0 IRIDIUM 129
1 42958U 17061D   25181.73438274  .00000028  00000-0  29406-5 0  9994
2 42958  86.3995 172.1368 0002549  95.9058 264.2428 14.34217662404422

Epoch: 2025-06-30T17:37Z

TLE epoch observation values (Epoch: 2025-06-30T17:37:30.668Z)

Latitude

-0.00008°

Longitude

-11.28093°

Altitude

780.902 km

Speed

7.463 km/s

True Right ascension

11h 28m 32s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-15.35537°

Longitude

-12.4976°

Altitude

784.567 km

Speed

7.46 km/s

Apparent Right ascension

09h 27m 34s

Apparent Declination

-31° 47' 05"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

18:34:51

Azimuth

269.384° W

Elevation

-54.429°

Doppler factor

Orbital elements

Apogee altitude

776.455 km

Perigee altitude

772.809 km

Semi-major axis

7,152.769 km

Eccentricity

0.00025

Inclination

86.3995°

RAAN

172.1368°

Arg. of periapsis

95.9058°

True anomaly

Unknown

Mean anomaly

264.2428°

Eccentric anomaly

Unknown

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.0000029406

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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.
8 mins	2025-07-01 10:56:58.452Z	16.49° NNE	2025-07-01 11:00:58.452Z	80.409° E	33.076°	2025-07-01 11:04:58.452Z	147.752° SSE
6 mins	2025-07-01 12:38:58.452Z	314.459° NW	2025-07-01 12:40:58.452Z	286.62° WNW	19.885°	2025-07-01 12:44:58.452Z	233.154° WSW
9 mins	2025-07-01 23:52:58.452Z	180.339° SSW	2025-07-01 23:56:58.452Z	149.98° SSE	44.971°	2025-07-02 00:01:58.452Z	2.848° NNE

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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.