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FLOCK 4H 23, 66726

Orbit data source: Space-Track

FLOCK 4H 23, 66726 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/66726?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/66726?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

66726, 2025-276BN

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 (2 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: 16 hours ago

TLE from 16 hours ago

0 FLOCK 4H 23
1 66726U 25276BN  26034.62519922  .00008738  00000-0  43371-3 0  9997
2 66726  97.4377 110.4719 0005935 102.0687 258.1213 15.17919160 10143

Epoch: 2026-02-03T15:00Z

TLE epoch observation values (Epoch: 2026-02-03T15:00:17.212Z)

Latitude

0.00004°

Longitude

111.59673°

Altitude

516.061 km

Speed

7.605 km/s

True Right ascension

07h 21m 53s

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

08:42:05

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

513.188 km

Perigee altitude

505.013 km

Semi-major axis

6,887.237 km

Eccentricity

0.00059

Inclination

97.4377°

RAAN

110.4719°

Arg. of periapsis

102.0687°

True anomaly

258.05476°

Mean anomaly

258.1213°

Eccentric anomaly

258.08803°

Mean motion

3.79731 °/min

Orbital period

94.8 mins

BSTAR

0.00043371

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

OBJECT AB, 66691

OBJECT CZ, 66761

W-SERIES 5, 66747 (Decayed)

LEMUR-2-LAILA, 66776

LEMUR-2-DEANANDMAEVE, 66678

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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 23 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.
4 mins	2026-02-04 18:28:46.304Z	327.946° NNW	2026-02-04 18:30:46.304Z	274.126° WNW	24.52°	2026-02-04 18:32:46.304Z	235.483° WSW
5 mins	2026-02-05 05:06:46.304Z	176.747° S	2026-02-05 05:08:46.304Z	220.163° SW	42.908°	2026-02-05 05:11:46.304Z	341.932° 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 23, 66726 on other resources

View FLOCK 4H 23, 66726 on NASA - NSSDCA Website

View FLOCK 4H 23, 66726 on Heavens-Above

View FLOCK 4H 23, 66726 on Keep Track

View FLOCK 4H 23, 66726 on Celestrak

View FLOCK 4H 23, 66726 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 23, 66726

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 16 hours ago

TLE from 16 hours ago

TLE epoch observation values (Epoch: 2026-02-03T15:00:17.212Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

FLOCK 4H 23 Visibility forecast

Co-orbital & Co-planar RSOs

Check out FLOCK 4H 23, 66726 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 16 hours ago