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IRIDIUM 155, 43573

Orbit data source: Space-Track

IRIDIUM 155, 43573 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/43573?theme=dark&initialShowStats=false

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Identifier

43573, 2018-061E

Orbit

LEO

Last TLE update

19 hours ago

Origin

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 (7 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 19 hours ago

0 IRIDIUM 155
1 43573U 18061E   25181.75683400  .00000097  00000-0  27547-4 0  9993
2 43573  86.3978 203.5052 0002403  84.5330 275.6140 14.34217472362982

Epoch: 2025-06-30T18:09Z

TLE epoch observation values (Epoch: 2025-06-30T18:09:50.457Z)

Latitude

-0.00002°

Longitude

11.9829°

Altitude

780.551 km

Speed

7.464 km/s

True Right ascension

13h 34m 01s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-7.99841°

Longitude

-167.84884°

Altitude

782.578 km

Speed

7.462 km/s

Apparent Right ascension

02h 35m 26s

Apparent Declination

-65° 27' 29"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

01:06:17

Azimuth

170.529° S

Elevation

-16.793°

Doppler factor

Orbital elements

Apogee altitude

776.351 km

Perigee altitude

772.914 km

Semi-major axis

7,152.77 km

Eccentricity

0.00024

Inclination

86.3978°

RAAN

203.5052°

Arg. of periapsis

84.533°

True anomaly

Unknown

Mean anomaly

275.614°

Eccentric anomaly

Unknown

Mean motion

3.58783 °/min

Orbital period

100.34 mins

BSTAR

0.000027547

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

IRIDIUM 155 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.
6 mins	2025-07-01 14:51:20.954Z	316.415° NNW	2025-07-01 14:54:20.954Z	277.537° WNW	17.292°	2025-07-01 14:57:20.954Z	240.58° WSW
8 mins	2025-07-02 02:06:20.954Z	188.284° SSW	2025-07-02 02:10:20.954Z	325.632° NNW	43.253°	2025-07-02 02:14:20.954Z	358.887° N
7 mins	2025-07-02 12:37:20.954Z	34.664° NE	2025-07-02 12:40:20.954Z	82.09° E	23.973°	2025-07-02 12:44:20.954Z	134.792° SE

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Check out IRIDIUM 155, 43573 on other resources

View IRIDIUM 155, 43573 on NASA - NSSDCA Website

View IRIDIUM 155, 43573 on Heavens-Above

View IRIDIUM 155, 43573 on Keep Track

View IRIDIUM 155, 43573 on Celestrak

View IRIDIUM 155, 43573 on Gunter's Space Page

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