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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: 18 hours ago

TLE from 18 hours ago

0 IRIDIUM 164
1 43577U 18061J   26135.30721477  .00000156  00000-0  48613-4 0  9998
2 43577  86.3963  70.5145 0002096  82.1735 277.9698 14.34217538408703

Epoch: 2026-05-15T07:22Z

TLE epoch observation values (Epoch: 2026-05-15T07:22:23.356Z)

Latitude

-0.00007°

Longitude

86.87677°

Altitude

780.511 km

Speed

7.464 km/s

True Right ascension

04h 42m 03s

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

10:22:13

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

776.132 km

Perigee altitude

773.133 km

Semi-major axis

7,152.769 km

Eccentricity

0.00021

Inclination

86.3963°

RAAN

70.5145°

Arg. of periapsis

82.1735°

True anomaly

277.94601°

Mean anomaly

277.9698°

Eccentric anomaly

277.95791°

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.000048613

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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.
9 mins	2026-05-16 07:23:30.615Z	10.181° NNE	2026-05-16 07:27:30.615Z	69.577° E	37.823°	2026-05-16 07:32:30.615Z	159.542° S
4 mins	2026-05-16 09:06:30.615Z	302.172° NW	2026-05-16 09:08:30.615Z	274.726° WNW	16.174°	2026-05-16 09:10:30.615Z	249.548° W
8 mins	2026-05-16 20:20:30.615Z	191.882° SSW	2026-05-16 20:23:30.615Z	244.142° WSW	43.299°	2026-05-16 20:28:30.615Z	357.74° N

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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: 18 hours ago

TLE from 18 hours ago

TLE epoch observation values (Epoch: 2026-05-15T07:22:23.356Z)

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: 18 hours ago