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 (4 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: 2 years ago

TLE from 2 years 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

18:36:29

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)

SKYKRAFT-1C, 55061

LEMUR 2 DISCLAIMER, 55014 (Decayed)

SHARJAHSAT-1, 55104

SPACEBEE-163, 55089 (Decayed)

SPACEBEE-158, 55100 (Decayed)

FUTURA-SM1, 55105 (Decayed)

FLOCK 4Y 19, 55026 (Decayed)

SPACEBEE-160, 55097 (Decayed)

SPACEBEE-164, 55091 (Decayed)

SPACEBEE-157, 55102 (Decayed)

NSL-2, 55067 (Decayed)

SPACEBEE-166, 55092 (Decayed)

LEMUR 2 STEVEALBERS, 55017 (Decayed)

FLOCK 4Y 31, 55075 (Decayed)

LEMUR 2 FUENTETAJA-01, 55088 (Decayed)

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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	2026-10-24 08:23:24.567Z	44.387° NE	2026-10-24 08:26:24.567Z	356.951° N	44.514°	2026-10-24 08:27:24.567Z	289.264° WNW
4 mins	2026-10-24 08:36:24.567Z	46.937° ENE	2026-10-24 08:39:24.567Z	0.413° NNE	44.181°	2026-10-24 08:40:24.567Z	306.195° NW
4 mins	2026-10-24 08:49:24.567Z	49.608° ENE	2026-10-24 08:52:24.567Z	3.52° NNE	44.021°	2026-10-24 08:53:24.567Z	318.513° NNW
4 mins	2026-10-24 09:02:24.567Z	52.416° ENE	2026-10-24 09:05:24.567Z	6.356° NNE	44.022°	2026-10-24 09:06:24.567Z	327.842° NNW
4 mins	2026-10-24 09:22:24.567Z	49.686° ENE	2026-10-24 09:25:24.567Z	357.164° N	43.978°	2026-10-24 09:26:24.567Z	304.784° NW
4 mins	2026-10-24 09:35:24.567Z	52.413° ENE	2026-10-24 09:38:24.567Z	0.409° NNE	44.285°	2026-10-24 09:39:24.567Z	316.793° NNW
4 mins	2026-10-24 09:48:24.567Z	55.291° ENE	2026-10-24 09:51:24.567Z	3.331° NNE	44.704°	2026-10-24 09:52:24.567Z	325.835° NNW
4 mins	2026-10-24 10:01:24.567Z	58.348° ENE	2026-10-24 10:03:24.567Z	26.326° NE	45.247°	2026-10-24 10:05:24.567Z	332.95° NNW
4 mins	2026-10-24 10:14:24.567Z	61.618° ENE	2026-10-24 10:16:24.567Z	28.285° NE	46.11°	2026-10-24 10:18:24.567Z	338.733° N
10 mins	2026-10-24 10:21:24.567Z	54.411° ENE	2026-10-24 10:29:24.567Z	30.228° NE	47.077°	2026-10-24 10:31:24.567Z	343.549° N
4 mins	2026-10-24 10:34:24.567Z	57.379° ENE	2026-10-24 10:36:24.567Z	21.938° NNE	47.816°	2026-10-24 10:38:24.567Z	325.083° NNW
4 mins	2026-10-24 10:47:24.567Z	60.559° ENE	2026-10-24 10:49:24.567Z	23.8° NE	48.818°	2026-10-24 10:51:24.567Z	331.881° NNW
4 mins	2026-10-24 11:00:24.567Z	63.995° ENE	2026-10-24 11:02:24.567Z	25.606° NE	49.92°	2026-10-24 11:04:24.567Z	337.36° NNW
4 mins	2026-10-24 11:13:24.567Z	67.738° E	2026-10-24 11:15:24.567Z	27.364° NE	51.118°	2026-10-24 11:17:24.567Z	341.888° N
10 mins	2026-10-24 11:20:24.567Z	58.435° ENE	2026-10-24 11:28:24.567Z	29.082° NE	52.411°	2026-10-24 11:30:24.567Z	345.694° N
10 mins	2026-10-24 11:33:24.567Z	61.768° ENE	2026-10-24 11:41:24.567Z	30.768° NE	53.796°	2026-10-24 11:43:24.567Z	348.929° N
4 mins	2026-10-24 11:46:24.567Z	65.427° ENE	2026-10-24 11:47:24.567Z	42.172° NE	54.872°	2026-10-24 11:50:24.567Z	337.041° NNW
4 mins	2026-10-24 11:59:24.567Z	69.49° E	2026-10-24 12:00:24.567Z	44.359° NE	56.478°	2026-10-24 12:03:24.567Z	341.189° N
4 mins	2026-10-24 12:12:24.567Z	74.048° E	2026-10-24 12:13:24.567Z	46.673° ENE	58.165°	2026-10-24 12:16:24.567Z	344.619° N
10 mins	2026-10-24 12:19:24.567Z	61.445° ENE	2026-10-24 12:26:24.567Z	49.158° ENE	59.929°	2026-10-24 12:29:24.567Z	347.479° N
10 mins	2026-10-24 12:32:24.567Z	65.371° ENE	2026-10-24 12:39:24.567Z	51.876° ENE	61.767°	2026-10-24 12:42:24.567Z	349.864° N
4 mins	2026-10-24 12:45:24.567Z	69.869° E	2026-10-24 12:46:24.567Z	39.085° NE	62.044°	2026-10-24 12:49:24.567Z	341.49° N
4 mins	2026-10-24 12:58:24.567Z	75.103° E	2026-10-24 12:59:24.567Z	40.844° NE	63.954°	2026-10-24 13:02:24.567Z	344.481° N
4 mins	2026-10-24 13:11:24.567Z	81.27° E	2026-10-24 13:12:24.567Z	42.706° NE	65.952°	2026-10-24 13:15:24.567Z	346.906° N
10 mins	2026-10-24 13:18:24.567Z	62.491° ENE	2026-10-24 13:25:24.567Z	44.729° NE	68.039°	2026-10-24 13:28:24.567Z	348.857° 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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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: 2 years ago

TLE from 2 years 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: 2 years ago