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FLOCK 4H 8, 66711

Orbit data source: Space-Track

FLOCK 4H 8, 66711 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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<iframe src="https://www.satcat.com/sats-embedded/66711?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/66711?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

66711, 2025-276AX

Orbit

SSO

Country

Related business

Planet Labs PBC (US)

Manufacturer

Planet

Mission

Operational Commercial Imaging

Bus & Motor

CUBESAT 3U, Unknown motor

Mass

5.7 kg wet, 5.7 kg dry

Launch date (UTC)

2025-11-28 (6 months ago)

Launch vehicle

FALCON 9

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

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 & history
Last TLE update: 1 week ago

TLE from 1 week ago

0 FLOCK 4H 8
1 66711U 25276AX  26155.01883685  .00008190  00000-0  38332-3 0  9991
2 66711  97.4224 228.8839 0004772  72.9081 287.2677 15.19987235 28423

Epoch: 2026-06-04T00:27Z

TLE epoch observation values (Epoch: 2026-06-04T00:27:07.503Z)

Latitude

0.00001°

Longitude

-30.36648°

Altitude

507.995 km

Speed

7.611 km/s

True Right ascension

15h 15m 32s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

01:38:06

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

506.129 km

Perigee altitude

499.562 km

Semi-major axis

6,880.983 km

Eccentricity

0.00048

Inclination

97.4224°

RAAN

228.8839°

Arg. of periapsis

72.9081°

True anomaly

287.21547°

Mean anomaly

287.2677°

Eccentric anomaly

287.24159°

Mean motion

3.80248 °/min

Orbital period

94.67 mins

BSTAR

0.00038332

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Other satellites on launch #276 in the year 2025 (2025-11-28 UTC)

FORESAIL-1 PRIME, 66778

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FLOCK 4H 8 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.
5 mins	2026-06-10 18:10:36.121Z	348.363° N	2026-06-10 18:12:36.121Z	287.832° WNW	35.304°	2026-06-10 18:15:36.121Z	215.763° SW
5 mins	2026-06-11 04:48:36.121Z	149.49° SSE	2026-06-11 04:50:36.121Z	56.787° ENE	41.649°	2026-06-11 04:53:36.121Z	355.567° N

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out FLOCK 4H 8, 66711 on other resources

View FLOCK 4H 8, 66711 on NASA - NSSDCA Website

View FLOCK 4H 8, 66711 on Heavens-Above

View FLOCK 4H 8, 66711 on Keep Track

View FLOCK 4H 8, 66711 on Celestrak

View FLOCK 4H 8, 66711 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

FLOCK 4H 8, 66711

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 1 week ago

TLE from 1 week ago

TLE epoch observation values (Epoch: 2026-06-04T00:27:07.503Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #276 in the year 2025 (2025-11-28 UTC)

FLOCK 4H 8 Visibility forecast

Co-orbital & Co-planar RSOs

Check out FLOCK 4H 8, 66711 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 1 week ago