FLOCK 4H 15, 66718
Orbit data source: Space-Track
FLOCK 4H 15, 66718 is a payload satellite owned by Planet (US) in SSO that was launched on Fri, 28 Nov 2025 UTC via an FALCON 9 launch vehicle from the Air Force Western Test Range (AFWTR). 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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66718 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
Planet
Mission
Operational 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
0.072 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 1 week ago
TLE from 1 week ago
0 FLOCK 4H 15
1 66718U 25276BE 26154.15359777 .00006838 00000-0 32602-3 0 9993
2 66718 97.4220 227.8823 0005712 74.5375 285.6491 15.19402908 28286Epoch: 2026-06-03T03:41Z
TLE epoch observation values (Epoch: 2026-06-03T03:41:10.847Z)
Latitude
0.00006°
Longitude
-79.0292°
Altitude
509.674 km
Speed
7.61 km/s
True Right ascension
15h 11m 31s
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
22:07:14
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
508.543 km
Perigee altitude
500.68 km
Semi-major axis
6,882.748 km
Eccentricity
0.00057
Inclination
97.422°
RAAN
227.8823°
Arg. of periapsis
74.5375°
True anomaly
285.58606°
Mean anomaly
285.6491°
Eccentric anomaly
285.61758°
Mean motion
3.80102 °/min
Orbital period
94.71 mins
BSTAR
0.00032602
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Other satellites on launch #276 in the year 2025 (2025-11-28 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 4H 15 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-06-10 18:00:18.705Z | 2.43° NNE | 2026-06-10 18:03:18.705Z | 288.771° WNW | 40.793° | 2026-06-10 18:06:18.705Z | 207.007° SW |
| 5 mins | 2026-06-11 04:39:18.705Z | 140.038° SSE | 2026-06-11 04:41:18.705Z | 79.073° E | 36.866° | 2026-06-11 04:44:18.705Z | 2.438° NNE |
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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