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IRIDIUM 164, 43577

Orbit data source: Space-Track

IRIDIUM 164, 43577 is a payload satellite owned by Iridium (US) in LEO that was launched on Wed, 25 Jul 2018 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/43577?theme=dark&initialShowStats=false

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Identifier

43577, 2018-061J

Orbit

LEO

Country

Related business

Iridium Communications Inc. (US)

Manufacturer

NGIS SSG Gilbert

Mission

Operational Commercial Communications

Bus & Motor

ELITEBUS, Unknown motor

Mass

860 kg wet, 700 kg dry

Launch date (UTC)

2018-07-25 (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, 4.8 m

Radar Cross Section

10.154 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 13 hours ago

TLE from 13 hours ago

0 IRIDIUM 164
1 43577U 18061J   26256.35558323  .00000069  00000-0  17637-4 0  9990
2 43577  86.4002  19.8935 0001988  93.8910 266.2514 14.34217682426050

Epoch: 2026-09-13T08:32Z

TLE epoch observation values (Epoch: 2026-09-13T08:32:02.391Z)

Latitude

0.00009°

Longitude

-100.46787°

Altitude

780.812 km

Speed

7.463 km/s

True Right ascension

01h 19m 34s

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

14:21:51

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

776.054 km

Perigee altitude

773.21 km

Semi-major axis

7,152.769 km

Eccentricity

0.0002

Inclination

86.4002°

RAAN

19.8935°

Arg. of periapsis

93.891°

True anomaly

266.22867°

Mean anomaly

266.2514°

Eccentric anomaly

266.24003°

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.000017637

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Other satellites on launch #61 in the year 2018 (2018-07-25 UTC)

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IRIDIUM 164 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	2026-09-14 08:05:44.002Z	142.064° SSE	2026-09-14 08:09:44.002Z	85.006° E	31.463°	2026-09-14 08:13:44.002Z	26.609° NE
7 mins	2026-09-14 09:47:44.002Z	236.139° WSW	2026-09-14 09:50:44.002Z	286.086° WNW	27.726°	2026-09-14 09:54:44.002Z	338.036° N
9 mins	2026-09-14 20:16:44.002Z	2.953° NNE	2026-09-14 20:20:44.002Z	72.234° E	73.397°	2026-09-14 20:25:44.002Z	171.847° S

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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 164, 43577 on other resources

View IRIDIUM 164, 43577 on NASA - NSSDCA Website

View IRIDIUM 164, 43577 on Heavens-Above

View IRIDIUM 164, 43577 on Keep Track

View IRIDIUM 164, 43577 on Celestrak

View IRIDIUM 164, 43577 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 164, 43577

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 13 hours ago

TLE from 13 hours ago

TLE epoch observation values (Epoch: 2026-09-13T08:32:02.391Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #61 in the year 2018 (2018-07-25 UTC)

IRIDIUM 164 Visibility forecast

Co-orbital & Co-planar RSOs

Check out IRIDIUM 164, 43577 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 13 hours ago