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BRO-20, 66674

Orbit data source: Space-Track

BRO-20, 66674 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/66674?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/66674?theme=dark&initialShowStats=false

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Identifier

66674, 2025-276J

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 (7 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: 10 hours ago

TLE from 10 hours ago

0 BRO-20
1 66674U 25276J   26193.00873123  .00001917  00000-0  96686-4 0  9993
2 66674  97.4164 265.6264 0004665 278.1090  81.9615 15.18315626 34163

Epoch: 2026-07-12T00:12Z

TLE epoch observation values (Epoch: 2026-07-12T00:12:34.378Z)

Latitude

0°

Longitude

-27.4306°

Altitude

513.571 km

Speed

7.607 km/s

True Right ascension

17h 42m 30s

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

22:26:34

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

511.112 km

Perigee altitude

504.687 km

Semi-major axis

6,886.036 km

Eccentricity

0.00047

Inclination

97.4164°

RAAN

265.6264°

Arg. of periapsis

278.109°

True anomaly

82.01444°

Mean anomaly

81.9615°

Eccentric anomaly

81.98797°

Mean motion

3.7983 °/min

Orbital period

94.78 mins

BSTAR

0.000096686

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

PELICAN-6 300D, 66703

FLOCK 4H 12, 66715

HUNITY-1, 66670

NUSAT-52, 66692

IMPULSE-3 MIRA, 66687

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BRO-20 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	2026-07-12 18:10:46.272Z	347.778° N	2026-07-12 18:12:46.272Z	297.111° NW	33.163°	2026-07-12 18:15:46.272Z	220.232° SW
5 mins	2026-07-13 04:49:46.272Z	155.07° SSE	2026-07-13 04:51:46.272Z	36.946° NE	42.923°	2026-07-13 04:54:46.272Z	352.763° N

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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-20, 66674 on other resources

View BRO-20, 66674 on NASA - NSSDCA Website

View BRO-20, 66674 on Heavens-Above

View BRO-20, 66674 on Keep Track

View BRO-20, 66674 on Celestrak

View BRO-20, 66674 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-20, 66674

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 10 hours ago

TLE from 10 hours ago

TLE epoch observation values (Epoch: 2026-07-12T00:12:34.378Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

BRO-20 Visibility forecast

Co-orbital & Co-planar RSOs

Check out BRO-20, 66674 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 10 hours ago