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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
66718 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
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: 6 hours ago
TLE from 6 hours ago
0 FLOCK 4H 15
1 66718U 25276BE 26238.94962882 .00020546 00000-0 93596-3 0 9991
2 66718 97.4175 311.2793 0005343 121.6158 238.5600 15.20688496 41163Epoch: 2026-08-26T22:47Z
TLE epoch observation values (Epoch: 2026-08-26T22:47:27.930Z)
Latitude
0.00006°
Longitude
-5.78237°
Altitude
508.773 km
Speed
7.609 km/s
True Right ascension
20h 45m 07s
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
20:35:25
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
504.403 km
Perigee altitude
497.053 km
Semi-major axis
6,878.865 km
Eccentricity
0.00053
Inclination
97.4175°
RAAN
311.2793°
Arg. of periapsis
121.6158°
True anomaly
238.50778°
Mean anomaly
238.56°
Eccentric anomaly
238.53389°
Mean motion
3.80424 °/min
Orbital period
94.63 mins
BSTAR
0.00093596
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 #276 in the year 2025 (2025-11-28 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 4H 15 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-08-27 05:14:03.911Z | 186.186° SSW | 2026-08-27 05:17:03.911Z | 271.422° WNW | 37.931° | 2026-08-27 05:20:03.911Z | 335.998° NNW |
| 5 mins | 2026-08-27 18:19:03.911Z | 336.567° NNW | 2026-08-27 18:21:03.911Z | 278.084° WNW | 28.76° | 2026-08-27 18:24:03.911Z | 222.532° SW |
| 5 mins | 2026-08-28 04:56:03.911Z | 165.11° S | 2026-08-28 04:58:03.911Z | 153.696° SSE | 43.868° | 2026-08-28 05:01:03.911Z | 349.255° 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 |
|---|
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 |
|---|