FLOCK 4Y 16, 55040 (Decayed)
Orbit data source: Space-Track
FLOCK 4Y 16, 55040 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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55040 intel report (Beta)
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Edit Public Description
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, Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 4 months ago
TLE from 4 months ago
0 FLOCK 4Y 16
1 55040U 23001AH 25173.79008710 .14776279 25435-5 30446-3 0 9997
2 55040 97.3385 250.7267 0018212 270.0096 89.9120 16.45345149138113Epoch: 2025-06-22T18:57Z
TLE epoch observation values (Epoch: 2025-06-22T18:57:43.525Z)
Latitude
0.00003°
Longitude
55.08568°
Altitude
154.886 km
Speed
7.813 km/s
True Right ascension
16h 42m 54s
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
06:11:40
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
160.306 km
Perigee altitude
136.534 km
Semi-major axis
6,526.557 km
Eccentricity
0.00182
Inclination
97.3385°
RAAN
250.7267°
Arg. of periapsis
270.0096°
True anomaly
90.12069°
Mean anomaly
89.912°
Eccentric anomaly
90.01635°
Mean motion
4.11639 °/min
Orbital period
87.46 mins
BSTAR
0.00030446
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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 16 Visibility
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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. |
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| This satellite is decayed. |
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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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