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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
55055 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Edit Sat Name
Focus sentinelFocus sentinel
Create New Watchlist
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
17:53:10
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
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #1 in the year 2023 (2023-01-03 UTC)
Did you know?
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
Loading observer location...
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 | 2026-07-06 14:45:42.640Z | 52.189° ENE | 2026-07-06 14:46:42.640Z | 84.146° E | 35.837° | 2026-07-06 14:49:42.640Z | 133.089° SE |
| 4 mins | 2026-07-06 14:53:42.640Z | 56.2° ENE | 2026-07-06 14:53:42.640Z | 56.2° ENE | 36.531° | 2026-07-06 14:57:42.640Z | 136.088° SSE |
| 4 mins | 2026-07-06 15:01:42.640Z | 60.181° ENE | 2026-07-06 15:01:42.640Z | 60.181° ENE | 37.301° | 2026-07-06 15:05:42.640Z | 139.108° SSE |
| 4 mins | 2026-07-06 15:09:42.640Z | 64.168° ENE | 2026-07-06 15:09:42.640Z | 64.168° ENE | 38.004° | 2026-07-06 15:13:42.640Z | 142.142° SSE |
| 4 mins | 2026-07-06 15:17:42.640Z | 68.196° E | 2026-07-06 15:17:42.640Z | 68.196° E | 38.644° | 2026-07-06 15:21:42.640Z | 145.183° SSE |
| 4 mins | 2026-07-06 15:25:42.640Z | 72.3° E | 2026-07-06 15:25:42.640Z | 72.3° E | 39.227° | 2026-07-06 15:29:42.640Z | 148.222° SSE |
| 4 mins | 2026-07-06 15:33:42.640Z | 76.512° E | 2026-07-06 15:33:42.640Z | 76.512° E | 39.757° | 2026-07-06 15:37:42.640Z | 151.252° SSE |
| 4 mins | 2026-07-06 15:41:42.640Z | 80.866° E | 2026-07-06 15:41:42.640Z | 80.866° E | 40.235° | 2026-07-06 15:45:42.640Z | 154.265° SSE |
| 4 mins | 2026-07-06 16:04:42.640Z | 49.393° ENE | 2026-07-06 16:05:42.640Z | 95.103° ESE | 41.381° | 2026-07-06 16:08:42.640Z | 151.244° SSE |
| 4 mins | 2026-07-06 16:12:42.640Z | 53.763° ENE | 2026-07-06 16:13:42.640Z | 100.33° ESE | 41.67° | 2026-07-06 16:16:42.640Z | 154.356° SSE |
| 4 mins | 2026-07-06 16:20:42.640Z | 58.339° ENE | 2026-07-06 16:21:42.640Z | 105.824° ESE | 41.914° | 2026-07-06 16:24:42.640Z | 157.414° SSE |
| 4 mins | 2026-07-06 16:28:42.640Z | 63.221° ENE | 2026-07-06 16:28:42.640Z | 63.221° ENE | 42.313° | 2026-07-06 16:32:42.640Z | 160.407° S |
| 4 mins | 2026-07-06 16:36:42.640Z | 68.529° E | 2026-07-06 16:36:42.640Z | 68.529° E | 42.79° | 2026-07-06 16:40:42.640Z | 163.323° S |
| 4 mins | 2026-07-06 16:44:42.640Z | 74.409° E | 2026-07-06 16:44:42.640Z | 74.409° E | 43.191° | 2026-07-06 16:48:42.640Z | 166.153° S |
| 4 mins | 2026-07-06 16:52:42.640Z | 81.037° E | 2026-07-06 16:52:42.640Z | 81.037° E | 43.524° | 2026-07-06 16:56:42.640Z | 168.888° S |
| 4 mins | 2026-07-06 17:00:42.640Z | 88.613° E | 2026-07-06 17:00:42.640Z | 88.613° E | 43.793° | 2026-07-06 17:04:42.640Z | 171.518° S |
| 4 mins | 2026-07-06 17:08:42.640Z | 97.328° ESE | 2026-07-06 17:08:42.640Z | 97.328° ESE | 44.002° | 2026-07-06 17:12:42.640Z | 174.035° S |
| 4 mins | 2026-07-06 17:16:42.640Z | 107.303° ESE | 2026-07-06 17:16:42.640Z | 107.303° ESE | 44.154° | 2026-07-06 17:20:42.640Z | 176.432° S |
| 4 mins | 2026-07-06 17:23:42.640Z | 35.711° NE | 2026-07-06 17:24:42.640Z | 118.471° SE | 44.251° | 2026-07-06 17:27:42.640Z | 173.229° S |
| 4 mins | 2026-07-06 17:31:42.640Z | 38.237° NE | 2026-07-06 17:32:42.640Z | 130.462° SE | 44.295° | 2026-07-06 17:35:42.640Z | 176.034° S |
| 4 mins | 2026-07-06 17:39:42.640Z | 40.905° NE | 2026-07-06 17:40:42.640Z | 142.618° SSE | 44.287° | 2026-07-06 17:43:42.640Z | 178.698° S |
| 4 mins | 2026-07-06 17:47:42.640Z | 43.92° NE | 2026-07-06 17:47:42.640Z | 43.92° NE | 44.453° | 2026-07-06 17:51:42.640Z | 181.216° SSW |
| 4 mins | 2026-07-06 17:55:42.640Z | 47.752° ENE | 2026-07-06 17:55:42.640Z | 47.752° ENE | 44.708° | 2026-07-06 17:59:42.640Z | 183.585° SSW |
| 4 mins | 2026-07-06 18:03:42.640Z | 53.846° ENE | 2026-07-06 18:03:42.640Z | 53.846° ENE | 44.879° | 2026-07-06 18:07:42.640Z | 185.803° SSW |
| 4 mins | 2026-07-06 18:11:42.640Z | 69.663° E | 2026-07-06 18:11:42.640Z | 69.663° E | 44.972° | 2026-07-06 18:15:42.640Z | 187.866° SSW |
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 |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
|---|