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FLOCK 4H 1, 66704

Orbit data source: Space-Track

FLOCK 4H 1, 66704 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/66704?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

66704, 2025-276AQ

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: 11 hours ago

TLE from 11 hours ago

0 FLOCK 4H 1
1 66704U 25276AQ  26141.26232897  .00004138  00000-0  19404-3 0  9995
2 66704  97.4179 215.3792 0003392  74.3254 285.8356 15.20219014 26340

Epoch: 2026-05-21T06:17Z

TLE epoch observation values (Epoch: 2026-05-21T06:17:45.223Z)

Latitude

0.00002°

Longitude

-117.96928°

Altitude

507.633 km

Speed

7.611 km/s

True Right ascension

14h 21m 31s

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

02:10:44

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

504.479 km

Perigee altitude

499.812 km

Semi-major axis

6,880.282 km

Eccentricity

0.00034

Inclination

97.4179°

RAAN

215.3792°

Arg. of periapsis

74.3254°

True anomaly

285.7982°

Mean anomaly

285.8356°

Eccentric anomaly

285.8169°

Mean motion

3.80307 °/min

Orbital period

94.66 mins

BSTAR

0.00019404

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

FLOCK 4H 30, 66733

NUSAT-51 (YVONNE BRILL), 66740

LEMUR-2-TEODOR, 66768

AE5RC, 66677

FLOCK 4H 35, 66738

LEMUR-2-VUKASIN, 66785

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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 1 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	2026-05-21 17:54:46.826Z	7.145° NNE	2026-05-21 17:57:46.826Z	301.876° NW	43.662°	2026-05-21 18:00:46.826Z	200.304° SSW
5 mins	2026-05-22 04:33:46.826Z	129.021° SE	2026-05-22 04:35:46.826Z	66.486° ENE	32.367°	2026-05-22 04:38:46.826Z	5.334° NNE

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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 1, 66704 on other resources

View FLOCK 4H 1, 66704 on NASA - NSSDCA Website

View FLOCK 4H 1, 66704 on Heavens-Above

View FLOCK 4H 1, 66704 on Keep Track

View FLOCK 4H 1, 66704 on Celestrak

View FLOCK 4H 1, 66704 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 1, 66704

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 11 hours ago

TLE from 11 hours ago

TLE epoch observation values (Epoch: 2026-05-21T06:17:45.223Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

FLOCK 4H 1 Visibility forecast

Co-orbital & Co-planar RSOs

Check out FLOCK 4H 1, 66704 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 11 hours ago