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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55055 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
Planet
Mission
Decayed Commercial Imaging
Bus & Motor
CUBESAT 3U, Unknown motor
Mass
5.7 kg wet, 5.7 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
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 & historyLast TLE update: 1 year ago
TLE from 1 year 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 16.43636492120784Epoch: 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
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
01:44:57
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)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.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 | 2026-05-13 01:41:27.538Z | 83.542° E | 2026-05-13 01:44:27.538Z | 21.03° NNE | 33.818° | 2026-05-13 01:45:27.538Z | 338.075° N |
| 4 mins | 2026-05-13 01:50:27.538Z | 81.947° E | 2026-05-13 01:52:27.538Z | 45.108° ENE | 34.243° | 2026-05-13 01:54:27.538Z | 327.954° NNW |
| 4 mins | 2026-05-13 02:16:27.538Z | 90.863° ESE | 2026-05-13 02:19:27.538Z | 24.811° NE | 35.6° | 2026-05-13 02:20:27.538Z | 345.751° N |
| 4 mins | 2026-05-13 02:25:27.538Z | 89.22° E | 2026-05-13 02:27:27.538Z | 49.378° ENE | 36.475° | 2026-05-13 02:29:27.538Z | 337.131° NNW |
| 4 mins | 2026-05-13 02:42:27.538Z | 100.373° ESE | 2026-05-13 02:45:27.538Z | 35.78° NE | 37.489° | 2026-05-13 02:46:27.538Z | 359.636° N |
| 4 mins | 2026-05-13 02:51:27.538Z | 98.947° ESE | 2026-05-13 02:53:27.538Z | 59.645° ENE | 37.822° | 2026-05-13 02:55:27.538Z | 351.629° N |
| 4 mins | 2026-05-13 03:00:27.538Z | 97.342° ESE | 2026-05-13 03:02:27.538Z | 53.557° ENE | 38.61° | 2026-05-13 03:04:27.538Z | 344.197° N |
| 4 mins | 2026-05-13 03:09:27.538Z | 95.477° ESE | 2026-05-13 03:11:27.538Z | 46.463° ENE | 39.134° | 2026-05-13 03:13:27.538Z | 337.306° NNW |
| 4 mins | 2026-05-13 03:17:27.538Z | 109.315° ESE | 2026-05-13 03:20:27.538Z | 38.463° NE | 39.368° | 2026-05-13 03:21:27.538Z | 3.125° NNE |
| 4 mins | 2026-05-13 03:26:27.538Z | 108.07° ESE | 2026-05-13 03:28:27.538Z | 64.764° ENE | 39.906° | 2026-05-13 03:30:27.538Z | 355.862° N |
| 4 mins | 2026-05-13 03:35:27.538Z | 106.659° ESE | 2026-05-13 03:37:27.538Z | 57.713° ENE | 40.544° | 2026-05-13 03:39:27.538Z | 349.406° N |
| 4 mins | 2026-05-13 03:44:27.538Z | 104.99° ESE | 2026-05-13 03:46:27.538Z | 49.449° ENE | 40.942° | 2026-05-13 03:48:27.538Z | 343.712° N |
| 4 mins | 2026-05-13 03:52:27.538Z | 119.366° SE | 2026-05-13 03:55:27.538Z | 40.211° NE | 41.077° | 2026-05-13 03:56:27.538Z | 5.083° NNE |
| 4 mins | 2026-05-13 04:01:27.538Z | 118.519° SE | 2026-05-13 04:03:27.538Z | 70.557° E | 41.694° | 2026-05-13 04:05:27.538Z | 358.464° N |
| 4 mins | 2026-05-13 04:10:27.538Z | 117.564° SE | 2026-05-13 04:12:27.538Z | 61.986° ENE | 42.199° | 2026-05-13 04:14:27.538Z | 352.874° N |
| 4 mins | 2026-05-13 04:19:27.538Z | 116.41° SE | 2026-05-13 04:21:27.538Z | 51.767° ENE | 42.484° | 2026-05-13 04:23:27.538Z | 348.22° N |
| 5 mins | 2026-05-13 04:27:27.538Z | 130.632° SE | 2026-05-13 04:29:27.538Z | 86.28° E | 42.541° | 2026-05-13 04:32:27.538Z | 344.34° N |
| 4 mins | 2026-05-13 04:36:27.538Z | 130.482° SE | 2026-05-13 04:38:27.538Z | 77.902° E | 43.126° | 2026-05-13 04:40:27.538Z | 359.318° N |
| 4 mins | 2026-05-13 04:45:27.538Z | 130.364° SE | 2026-05-13 04:47:27.538Z | 66.726° ENE | 43.512° | 2026-05-13 04:49:27.538Z | 354.594° N |
| 4 mins | 2026-05-13 04:54:27.538Z | 130.226° SE | 2026-05-13 04:56:27.538Z | 52.831° ENE | 43.696° | 2026-05-13 04:58:27.538Z | 350.934° N |
| 5 mins | 2026-05-13 05:02:27.538Z | 142.974° SSE | 2026-05-13 05:04:27.538Z | 99.583° ESE | 43.686° | 2026-05-13 05:07:27.538Z | 348.156° N |
| 4 mins | 2026-05-13 05:11:27.538Z | 143.846° SSE | 2026-05-13 05:13:27.538Z | 89.392° E | 44.151° | 2026-05-13 05:15:27.538Z | 358.19° N |
| 4 mins | 2026-05-13 05:20:27.538Z | 144.985° SSE | 2026-05-13 05:22:27.538Z | 73.147° E | 44.432° | 2026-05-13 05:24:27.538Z | 354.465° N |
| 4 mins | 2026-05-13 05:29:27.538Z | 146.433° SSE | 2026-05-13 05:31:27.538Z | 50.414° ENE | 44.528° | 2026-05-13 05:33:27.538Z | 351.861° N |
| 5 mins | 2026-05-13 05:37:27.538Z | 155.902° SSE | 2026-05-13 05:40:27.538Z | 27.298° NE | 44.43° | 2026-05-13 05:42:27.538Z | 350.167° N |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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