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IRIDIUM 174, 56728

Orbit data source: Space-Track

IRIDIUM 174, 56728 is a payload satellite owned by Iridium (US) in LEO that was launched on Sat, 20 May 2023 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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https://www.satcat.com/sats-embedded/56728?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

56728, 2023-068U

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)

2023-05-20 (3 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: 2 days ago

TLE from 2 days ago

0 IRIDIUM 174
1 56728U 23068U   26171.41519924  .00000592  00000-0  90019-4 0  9998
2 56728  86.6099 352.3407 0002429  84.2983 275.8511 14.72267531166496

Epoch: 2026-06-20T09:57Z

TLE epoch observation values (Epoch: 2026-06-20T09:57:53.214Z)

Latitude

-0.00002°

Longitude

-65.76118°

Altitude

656.772 km

Speed

7.529 km/s

True Right ascension

23h 29m 21s

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

21:31:33

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

652.453 km

Perigee altitude

649.038 km

Semi-major axis

7,028.882 km

Eccentricity

0.00024

Inclination

86.6099°

RAAN

352.3407°

Arg. of periapsis

84.2983°

True anomaly

275.82341°

Mean anomaly

275.8511°

Eccentric anomaly

275.83726°

Mean motion

3.6831 °/min

Orbital period

97.74 mins

BSTAR

0.000090019

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Other satellites on launch #68 in the year 2023 (2023-05-20 UTC)

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IRIDIUM 174 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	2026-06-22 12:38:32.157Z	187.572° SSW	2026-06-22 12:42:32.157Z	241.729° WSW	43.459°	2026-06-22 12:46:32.157Z	357.135° N
6 mins	2026-06-23 00:32:32.157Z	334.359° NNW	2026-06-23 00:35:32.157Z	252.323° W	34.825°	2026-06-23 00:38:32.157Z	203.811° SW

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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 174, 56728 on other resources

View IRIDIUM 174, 56728 on NASA - NSSDCA Website

View IRIDIUM 174, 56728 on Heavens-Above

View IRIDIUM 174, 56728 on Keep Track

View IRIDIUM 174, 56728 on Celestrak

View IRIDIUM 174, 56728 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 174, 56728

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-06-20T09:57:53.214Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #68 in the year 2023 (2023-05-20 UTC)

IRIDIUM 174 Visibility forecast

Co-orbital & Co-planar RSOs

Check out IRIDIUM 174, 56728 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago