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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 (4 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

Expand to show TLE details & history
Last TLE update: 18 hours ago

TLE from 18 hours ago

0 FLOCK 4H 8
1 66711U 25276AX  26092.13280387  .00008139  00000-0  38992-3 0  9999
2 66711  97.4265 167.0310 0002004 281.6273  78.4736 15.19188585 18879

Epoch: 2026-04-02T03:11Z

TLE epoch observation values (Epoch: 2026-04-02T03:11:14.254Z)

Latitude

-0.00008°

Longitude

-71.26405°

Altitude

511.105 km

Speed

7.608 km/s

True Right ascension

11h 08m 07s

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

02:59:29

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

506.639 km

Perigee altitude

503.88 km

Semi-major axis

6,883.396 km

Eccentricity

0.0002

Inclination

97.4265°

RAAN

167.031°

Arg. of periapsis

281.6273°

True anomaly

78.4961°

Mean anomaly

78.4736°

Eccentric anomaly

78.48485°

Mean motion

3.80048 °/min

Orbital period

94.72 mins

BSTAR

0.00038992

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

PELICAN-6 300D, 66703

FLOCK 4H 12, 66715

FLOCK 4H 33, 66736

FLOCK 4H 23, 66726

LEMUR-2-DEANANDMAEVE, 66678

LEMUR-2-HOTSPUR-TOM, 66786

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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.

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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.
6 mins	2026-04-03 04:37:03.630Z	141.301° SSE	2026-04-03 04:40:03.630Z	53.703° ENE	34.166°	2026-04-03 04:43:03.630Z	1.835° NNE
6 mins	2026-04-03 17:42:03.630Z	19.496° NNE	2026-04-03 17:44:03.630Z	55.889° ENE	42.239°	2026-04-03 17:48:03.630Z	186.427° SSW

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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: 18 hours ago

TLE from 18 hours ago

TLE epoch observation values (Epoch: 2026-04-02T03:11:14.254Z)

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: 18 hours ago