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FLOCK 4H 12, 66715

Orbit data source: Space-Track

FLOCK 4H 12, 66715 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/66715?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

66715, 2025-276BB

Orbit

SSO

Country

Related business

Planet Labs PBC (US)

Manufacturer

Planet

Mission

Partially 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: 8 hours ago

TLE from 8 hours ago

0 FLOCK 4H 12
1 66715U 25276BB  26147.52515384  .00008138  00000-0  37854-3 0  9990
2 66715  97.4198 221.5399 0003285  65.6253 294.5325 15.20205090 27600

Epoch: 2026-05-27T12:36Z

TLE epoch observation values (Epoch: 2026-05-27T12:36:13.291Z)

Latitude

-0.00002°

Longitude

147.40153°

Altitude

507.373 km

Speed

7.611 km/s

True Right ascension

14h 46m 09s

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

05:58:09

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

504.448 km

Perigee altitude

499.927 km

Semi-major axis

6,880.325 km

Eccentricity

0.00033

Inclination

97.4198°

RAAN

221.5399°

Arg. of periapsis

65.6253°

True anomaly

294.49825°

Mean anomaly

294.5325°

Eccentric anomaly

294.51538°

Mean motion

3.80303 °/min

Orbital period

94.66 mins

BSTAR

0.00037854

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

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FLOCK 4H 12 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	2026-05-28 04:31:59.221Z	139.854° SSE	2026-05-28 04:34:59.221Z	72.877° E	32.099°	2026-05-28 04:37:59.221Z	6.616° NNE
5 mins	2026-05-28 17:36:59.221Z	25.382° NE	2026-05-28 17:38:59.221Z	82.662° E	40.879°	2026-05-28 17:41:59.221Z	179.133° S

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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 12, 66715 on other resources

View FLOCK 4H 12, 66715 on NASA - NSSDCA Website

View FLOCK 4H 12, 66715 on Heavens-Above

View FLOCK 4H 12, 66715 on Keep Track

View FLOCK 4H 12, 66715 on Celestrak

View FLOCK 4H 12, 66715 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 12, 66715

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 8 hours ago

TLE from 8 hours ago

TLE epoch observation values (Epoch: 2026-05-27T12:36:13.291Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

FLOCK 4H 12 Visibility forecast

Co-orbital & Co-planar RSOs

Check out FLOCK 4H 12, 66715 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 8 hours ago