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IRIDIUM 122, 42957

Orbit data source: Space-Track

IRIDIUM 122, 42957 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/42957?theme=dark&initialShowStats=false

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Identifier

42957, 2017-061C

Orbit

LEO

Country

Related business

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, 4.8 m

Radar Cross Section

10.154 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 7 hours ago

TLE from 7 hours ago

0 IRIDIUM 122
1 42957U 17061C   26038.15429082  .00000123  00000-0  36715-4 0  9994
2 42957  86.3919  79.5655 0002272  90.7029 269.4428 14.34217857436147

Epoch: 2026-02-07T03:42Z

TLE epoch observation values (Epoch: 2026-02-07T03:42:10.726Z)

Latitude

0.00004°

Longitude

-113.26108°

Altitude

780.734 km

Speed

7.463 km/s

True Right ascension

05h 18m 15s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

12:36:44

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

776.256 km

Perigee altitude

773.006 km

Semi-major axis

7,152.768 km

Eccentricity

0.00023

Inclination

86.3919°

RAAN

79.5655°

Arg. of periapsis

90.7029°

True anomaly

269.41677°

Mean anomaly

269.4428°

Eccentric anomaly

269.42978°

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.000036715

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

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IRIDIUM 122 Visibility forecast

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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	2026-02-07 14:18:58.871Z	10.684° NNE	2026-02-07 14:23:58.871Z	86.886° E	35.225°	2026-02-07 14:27:58.871Z	152.294° SSE
5 mins	2026-02-07 16:01:58.871Z	310.743° NW	2026-02-07 16:03:58.871Z	283.127° WNW	18.419°	2026-02-07 16:06:58.871Z	242.624° WSW
10 mins	2026-02-08 03:14:58.871Z	183.794° SSW	2026-02-08 03:19:58.871Z	305.808° NW	44.735°	2026-02-08 03:24:58.871Z	1.016° NNE

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out IRIDIUM 122, 42957 on other resources

View IRIDIUM 122, 42957 on NASA - NSSDCA Website

View IRIDIUM 122, 42957 on Heavens-Above

View IRIDIUM 122, 42957 on Keep Track

View IRIDIUM 122, 42957 on Celestrak

View IRIDIUM 122, 42957 on Gunter's Space Page

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

IRIDIUM 122, 42957

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 7 hours ago

TLE from 7 hours ago

TLE epoch observation values (Epoch: 2026-02-07T03:42:10.726Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

IRIDIUM 122 Visibility forecast

Co-orbital & Co-planar RSOs

Check out IRIDIUM 122, 42957 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 7 hours ago