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FLOCK 4H 34, 66737

Orbit data source: Space-Track

FLOCK 4H 34, 66737 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/66737?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

66737, 2025-276BZ

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 (9 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, Medium (>0.1 m² and < 1m²)

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

TLE from 16 hours ago

0 FLOCK 4H 34
1 66737U 25276BZ  26238.18838255  .00005460  00000-0  24721-3 0  9996
2 66737  97.4197 310.9820 0003977  77.4725 282.6955 15.21286410 40325

Epoch: 2026-08-26T04:31Z

TLE epoch observation values (Epoch: 2026-08-26T04:31:16.252Z)

Latitude

-0.00006°

Longitude

-91.28067°

Altitude

504.451 km

Speed

7.612 km/s

True Right ascension

20h 43m 55s

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

11:46:04

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

501.659 km

Perigee altitude

496.189 km

Semi-major axis

6,877.061 km

Eccentricity

0.0004

Inclination

97.4197°

RAAN

310.982°

Arg. of periapsis

77.4725°

True anomaly

282.65104°

Mean anomaly

282.6955°

Eccentric anomaly

282.67327°

Mean motion

3.80574 °/min

Orbital period

94.59 mins

BSTAR

0.00024721

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

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FLOCK 4H 34 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	2026-08-27 04:20:09.295Z	128.999° SE	2026-08-27 04:23:09.295Z	70.167° E	24.659°	2026-08-27 04:26:09.295Z	12.972° NNE
4 mins	2026-08-27 17:25:09.295Z	47.243° ENE	2026-08-27 17:27:09.295Z	119.623° SE	31.62°	2026-08-27 17:29:09.295Z	162.613° 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 34, 66737 on other resources

View FLOCK 4H 34, 66737 on NASA - NSSDCA Website

View FLOCK 4H 34, 66737 on Heavens-Above

View FLOCK 4H 34, 66737 on Keep Track

View FLOCK 4H 34, 66737 on Celestrak

View FLOCK 4H 34, 66737 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 34, 66737

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: 2026-08-26T04:31:16.252Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

FLOCK 4H 34 Visibility forecast

Co-orbital & Co-planar RSOs

Check out FLOCK 4H 34, 66737 on other resources

Documentation

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