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FLOCK 4H 6, 66709

Orbit data source: Space-Track

FLOCK 4H 6, 66709 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 URL

https://www.satcat.com/sats-embedded/66709?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

66709, 2025-276AV

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

Expand to show TLE details & history
Last TLE update: 13 hours ago

TLE from 13 hours ago

0 FLOCK 4H 6
1 66709U 25276AV  26141.15958532  .00004419  00000-0  20868-3 0  9997
2 66709  97.4230 215.3287 0004696  79.1871 280.9892 15.19939013 26323

Epoch: 2026-05-21T03:49Z

TLE epoch observation values (Epoch: 2026-05-21T03:49:48.171Z)

Latitude

-0.00008°

Longitude

-80.93079°

Altitude

508.5 km

Speed

7.61 km/s

True Right ascension

14h 21m 18s

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

01:44:47

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

506.223 km

Perigee altitude

499.76 km

Semi-major axis

6,881.128 km

Eccentricity

0.00047

Inclination

97.423°

RAAN

215.3287°

Arg. of periapsis

79.1871°

True anomaly

280.93637°

Mean anomaly

280.9892°

Eccentric anomaly

280.96278°

Mean motion

3.80236 °/min

Orbital period

94.68 mins

BSTAR

0.00020868

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

IRIDE FM3, 66697

LILIUM-3, 66770

LEMUR-2-TEODOR, 66768

PELICAN-5 300C, 66667

LEMUR-2-VUKASIN, 66785

HYDROGNSS-1, 66762

HYDROGNSS-2, 66763

LILIUM-2, 66679

NUSAT-51 (YVONNE BRILL), 66740

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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 6 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	2026-05-21 17:02:54.260Z	48.543° ENE	2026-05-21 17:04:54.260Z	85.522° E	20.138°	2026-05-21 17:07:54.260Z	144.472° SSE
5 mins	2026-05-22 05:14:54.260Z	189.194° SSW	2026-05-22 05:16:54.260Z	249.597° W	39.006°	2026-05-22 05:19:54.260Z	335.584° NNW

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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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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

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Check out FLOCK 4H 6, 66709 on other resources

View FLOCK 4H 6, 66709 on NASA - NSSDCA Website

View FLOCK 4H 6, 66709 on Heavens-Above

View FLOCK 4H 6, 66709 on Keep Track

View FLOCK 4H 6, 66709 on Celestrak

View FLOCK 4H 6, 66709 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 6, 66709

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 13 hours ago

TLE from 13 hours ago

TLE epoch observation values (Epoch: 2026-05-21T03:49:48.171Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

FLOCK 4H 6 Visibility forecast

Co-orbital & Co-planar RSOs

Check out FLOCK 4H 6, 66709 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 13 hours ago