DECAYED

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FLOCK 4Y 4, 55055 (Decayed)

Orbit data source: Space-Track

FLOCK 4Y 4, 55055 was a payload satellite owned by Planet (US) in LEO that was launched on Tue, 03 Jan 2023 UTC via an FALCON 9 launch vehicle from the Air Force Eastern Test Range (AFETR). 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 src="https://www.satcat.com/sats-embedded/55055?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/55055?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

55055, 2023-001AY

Orbit

Decayed

Country

Related business

Planet Labs PBC (US)

Manufacturer

Planet

Mission

Decayed Commercial Imaging

Bus & Motor

CUBESAT 3U, Unknown motor

Mass

5.7 kg wet, 5.7 kg dry

Launch date (UTC)

2023-01-03 (3 years ago)

Launch vehicle

FALCON 9

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 1.0 m

Radar Cross Section

0.108 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 11 months ago

TLE from 11 months ago

0 FLOCK 4Y 4
1 55055U 23001AY  25062.25736314  .16914482  25843-5  58547-3 0  9996
2 55055  97.3400 135.3909 0010231 244.9930 115.0309 16.43636492120784

Epoch: 2025-03-03T06:10Z

TLE epoch observation values (Epoch: 2025-03-03T06:10:36.175Z)

Latitude

-0.00006°

Longitude

-118.53755°

Altitude

162.24 km

Speed

7.807 km/s

True Right ascension

09h 01m 33s

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

03:11:40

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

159.629 km

Perigee altitude

146.265 km

Semi-major axis

6,531.084 km

Eccentricity

0.00102

Inclination

97.34°

RAAN

135.3909°

Arg. of periapsis

244.993°

True anomaly

115.13707°

Mean anomaly

115.0309°

Eccentric anomaly

115.08399°

Mean motion

4.11212 °/min

Orbital period

87.55 mins

BSTAR

0.00058547

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Other satellites on launch #1 in the year 2023 (2023-01-03 UTC)

KUWAITSAT-1, 55103

BIRKELAND, 55015

FUTURA-SM3, 55106 (Decayed)

FLOCK 4Y 17, 55031 (Decayed)

FLOCK 4Y 18, 55023 (Decayed)

FLOCK 4Y 36, 55078 (Decayed)

SKYKRAFT-1A, 55054

MENUT, 55010

ICEYE-X27, 55062 (Decayed)

ION SCV-008, 55051

NUSAT-32 (ALBANIA-1), 55064

LEMUR 2 EMMACULATE, 55037 (Decayed)

KSF3-D, 55085 (Decayed)

SKYKRAFT-1, 55041

SKYKRAFT-1C, 55061

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FLOCK 4Y 4 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.
4 mins	2026-01-24 02:04:29.730Z	17.768° NNE	2026-01-24 02:06:29.730Z	60.292° ENE	23.037°	2026-01-24 02:08:29.730Z	102.826° ESE
4 mins	2026-01-24 03:47:29.730Z	32.309° NE	2026-01-24 03:49:29.730Z	94.493° ESE	36.736°	2026-01-24 03:51:29.730Z	146.008° SSE
4 mins	2026-01-24 04:21:29.730Z	28.153° NE	2026-01-24 04:23:29.730Z	100.707° ESE	40.41°	2026-01-24 04:25:29.730Z	156.349° SSE
4 mins	2026-01-24 04:55:29.730Z	22.716° NE	2026-01-24 04:57:29.730Z	110.881° ESE	42.992°	2026-01-24 04:59:29.730Z	167.93° S
4 mins	2026-01-24 05:06:29.730Z	17.142° NNE	2026-01-24 05:08:29.730Z	86.133° E	43.822°	2026-01-24 05:10:29.730Z	168.914° S
4 mins	2026-01-24 05:29:29.730Z	16.022° NNE	2026-01-24 05:31:29.730Z	135.717° SSE	44.419°	2026-01-24 05:33:29.730Z	180.378° SSW
4 mins	2026-01-24 05:40:29.730Z	12.298° NNE	2026-01-24 05:42:29.730Z	82.206° E	44.876°	2026-01-24 05:44:29.730Z	183.607° SSW
4 mins	2026-01-24 06:03:29.730Z	8.339° NNE	2026-01-24 06:05:29.730Z	206.509° SW	44.662°	2026-01-24 06:07:29.730Z	193.035° SSW
4 mins	2026-01-24 06:14:29.730Z	7.002° NNE	2026-01-24 06:16:29.730Z	282.392° WNW	44.845°	2026-01-24 06:18:29.730Z	198.29° SSW
4 mins	2026-01-24 06:37:29.730Z	0.218° NNE	2026-01-24 06:39:29.730Z	247.611° W	43.731°	2026-01-24 06:41:29.730Z	205.174° SW
4 mins	2026-01-24 06:48:29.730Z	1.508° NNE	2026-01-24 06:50:29.730Z	279.384° WNW	43.745°	2026-01-24 06:52:29.730Z	211.834° SW
4 mins	2026-01-24 07:11:29.730Z	352.358° N	2026-01-24 07:12:29.730Z	320.32° NNW	41.896°	2026-01-24 07:15:29.730Z	216.264° SW
4 mins	2026-01-24 07:22:29.730Z	356.11° N	2026-01-24 07:24:29.730Z	280.708° WNW	41.621°	2026-01-24 07:26:29.730Z	223.642° SW
4 mins	2026-01-24 07:56:29.730Z	351.082° N	2026-01-24 07:58:29.730Z	282.726° WNW	38.545°	2026-01-24 08:00:29.730Z	233.672° WSW
4 mins	2026-01-24 08:30:29.730Z	346.628° N	2026-01-24 08:31:29.730Z	317.59° NNW	35.494°	2026-01-24 08:34:29.730Z	242.186° WSW

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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 FLOCK 4Y 4, 55055 (Decayed) on other resources

View FLOCK 4Y 4, 55055 (Decayed) on Celestrak

View FLOCK 4Y 4, 55055 (Decayed) on Gunter's Space Page

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

FLOCK 4Y 4, 55055 (Decayed)

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 11 months ago

TLE from 11 months ago

TLE epoch observation values (Epoch: 2025-03-03T06:10:36.175Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #1 in the year 2023 (2023-01-03 UTC)

FLOCK 4Y 4 Visibility forecast

Co-orbital & Co-planar RSOs

Check out FLOCK 4Y 4, 55055 (Decayed) on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 11 months ago