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FLOCK 4H 27, 66730

Orbit data source: Space-Track

FLOCK 4H 27, 66730 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/66730?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

66730, 2025-276BS

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: 18 hours ago

TLE from 18 hours ago

0 FLOCK 4H 27
1 66730U 25276BS  26034.45559371  .00007685  00000-0  37312-3 0  9993
2 66730  97.4308 110.3316 0002077  85.9555 274.1916 15.18739947 10121

Epoch: 2026-02-03T10:56Z

TLE epoch observation values (Epoch: 2026-02-03T10:56:03.296Z)

Latitude

-0.0001°

Longitude

172.6816°

Altitude

512.631 km

Speed

7.608 km/s

True Right ascension

07h 21m 19s

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

07:05:33

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

508.046 km

Perigee altitude

505.186 km

Semi-major axis

6,884.753 km

Eccentricity

0.00021

Inclination

97.4308°

RAAN

110.3316°

Arg. of periapsis

85.9555°

True anomaly

274.16786°

Mean anomaly

274.1916°

Eccentric anomaly

274.17973°

Mean motion

3.79936 °/min

Orbital period

94.75 mins

BSTAR

0.00037312

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

FORMOSAT-8A, 66666

LEMUR-2-STAS-GORBUK, 66686

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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 27 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	2026-02-04 17:33:29.628Z	30.659° NE	2026-02-04 17:35:29.628Z	91.398° ESE	38.416°	2026-02-04 17:38:29.628Z	174.518° S
4 mins	2026-02-05 04:12:29.628Z	104.015° ESE	2026-02-05 04:14:29.628Z	59.768° ENE	19.867°	2026-02-05 04:16:29.628Z	23.727° NE

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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 27, 66730 on other resources

View FLOCK 4H 27, 66730 on NASA - NSSDCA Website

View FLOCK 4H 27, 66730 on Heavens-Above

View FLOCK 4H 27, 66730 on Keep Track

View FLOCK 4H 27, 66730 on Celestrak

View FLOCK 4H 27, 66730 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 27, 66730

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: 2026-02-03T10:56:03.296Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

FLOCK 4H 27 Visibility forecast

Co-orbital & Co-planar RSOs

Check out FLOCK 4H 27, 66730 on other resources

Documentation

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