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IRIDIUM 125, 42964

Orbit data source: Space-Track

IRIDIUM 125, 42964 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/42964?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

42964, 2017-061K

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 (9 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: 6 hours ago

TLE from 6 hours ago

0 IRIDIUM 125
1 42964U 17061K   26141.80493921  .00000032  00000-0  43830-5 0  9998
2 42964  86.3993  36.4060 0002746  83.9882 276.1626 14.34217198451078

Epoch: 2026-05-21T19:19Z

TLE epoch observation values (Epoch: 2026-05-21T19:19:06.747Z)

Latitude

-0.00011°

Longitude

-132.817°

Altitude

780.51 km

Speed

7.464 km/s

True Right ascension

02h 25m 37s

True Declination

0° 00' 00"

Sunlit

Object was in daylight 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

09:50:35

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

776.598 km

Perigee altitude

772.669 km

Semi-major axis

7,152.77 km

Eccentricity

0.00027

Inclination

86.3993°

RAAN

36.406°

Arg. of periapsis

83.9882°

True anomaly

276.13131°

Mean anomaly

276.1626°

Eccentric anomaly

276.14696°

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.000004383

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

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IRIDIUM 125 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.
8 mins	2026-05-22 04:16:22.328Z	25.554° NE	2026-05-22 04:20:22.328Z	83.857° E	24.777°	2026-05-22 04:24:22.328Z	136.561° SSE
7 mins	2026-05-22 05:57:22.328Z	329.983° NNW	2026-05-22 06:00:22.328Z	286.382° WNW	27.246°	2026-05-22 06:04:22.328Z	221.278° SW
9 mins	2026-05-22 17:12:22.328Z	163.884° S	2026-05-22 17:16:22.328Z	84.951° E	40.68°	2026-05-22 17:21:22.328Z	10.419° 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 125, 42964 on other resources

View IRIDIUM 125, 42964 on NASA - NSSDCA Website

View IRIDIUM 125, 42964 on Heavens-Above

View IRIDIUM 125, 42964 on Keep Track

View IRIDIUM 125, 42964 on Celestrak

View IRIDIUM 125, 42964 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 125, 42964

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 6 hours ago

TLE from 6 hours ago

TLE epoch observation values (Epoch: 2026-05-21T19:19:06.747Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

IRIDIUM 125 Visibility forecast

Co-orbital & Co-planar RSOs

Check out IRIDIUM 125, 42964 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 6 hours ago