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BRO-17, 66672

Orbit data source: Space-Track

BRO-17, 66672 is a payload satellite owned by Unseen Labs (FR) 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/66672?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/66672?theme=dark&initialShowStats=false

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Identifier

66672, 2025-276G

Orbit

SSO

Country

Related business

UnseenLabs SAS (FR)

Manufacturer

GOMSpace

Mission

Operational Commercial Sigint

Bus & Motor

CUBESAT 8U, Unknown motor

Mass

15 kg wet, ~15 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, 0.2 m

Radar Cross Section

0.100 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 6 hours ago

TLE from 6 hours ago

0 BRO-17
1 66672U 25276G   26238.44252986  .00002889  00000-0  14378-3 0  9993
2 66672  97.4149 310.1833 0008330 111.8383 248.3738 15.18362009 41051

Epoch: 2026-08-26T10:37Z

TLE epoch observation values (Epoch: 2026-08-26T10:37:14.579Z)

Latitude

-0.00005°

Longitude

176.1771°

Altitude

515.998 km

Speed

7.604 km/s

True Right ascension

20h 40m 43s

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

08:22:27

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

513.495 km

Perigee altitude

502.023 km

Semi-major axis

6,885.896 km

Eccentricity

0.00083

Inclination

97.4149°

RAAN

310.1833°

Arg. of periapsis

111.8383°

True anomaly

248.2851°

Mean anomaly

248.3738°

Eccentric anomaly

248.32945°

Mean motion

3.79842 °/min

Orbital period

94.78 mins

BSTAR

0.00014378

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

W-SERIES 5, 66747 (Decayed)

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BRO-17 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	2026-08-26 17:31:05.695Z	24.138° NE	2026-08-26 17:34:05.695Z	128.771° SE	39.203°	2026-08-26 17:37:05.695Z	179.678° S
4 mins	2026-08-27 04:11:05.695Z	100.354° ESE	2026-08-27 04:12:05.695Z	77.262° E	21.458°	2026-08-27 04:15:05.695Z	18.893° 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 BRO-17, 66672 on other resources

View BRO-17, 66672 on NASA - NSSDCA Website

View BRO-17, 66672 on Heavens-Above

View BRO-17, 66672 on Keep Track

View BRO-17, 66672 on Celestrak

View BRO-17, 66672 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

BRO-17, 66672

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 6 hours ago

TLE from 6 hours ago

TLE epoch observation values (Epoch: 2026-08-26T10:37:14.579Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

BRO-17 Visibility forecast

Co-orbital & Co-planar RSOs

Check out BRO-17, 66672 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 6 hours ago