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BRO-18, 64550

Orbit data source: Space-Track

BRO-18, 64550 is a payload satellite owned by Unseen Labs (FR) in SSO that was launched on Mon, 23 Jun 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/64550?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/64550?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

64550, 2025-135Y

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)

2025-06-23 (1 year 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: 8 hours ago

TLE from 8 hours ago

0 BRO-18
1 64550U 25135Y   26260.27699113  .00002958  00000-0  13043-3 0  9998
2 64550  97.4703  14.6646 0000528  85.8016 274.3281 15.22581125 68881

Epoch: 2026-09-17T06:38Z

TLE epoch observation values (Epoch: 2026-09-17T06:38:52.033Z)

Latitude

0°

Longitude

-81.26875°

Altitude

501.123 km

Speed

7.614 km/s

True Right ascension

00h 58m 39s

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

07:19:26

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

495.387 km

Perigee altitude

494.661 km

Semi-major axis

6,873.161 km

Eccentricity

0.00005

Inclination

97.4703°

RAAN

14.6646°

Arg. of periapsis

85.8016°

True anomaly

274.32207°

Mean anomaly

274.3281°

Eccentric anomaly

274.32508°

Mean motion

3.80898 °/min

Orbital period

94.51 mins

BSTAR

0.00013043

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Other satellites on launch #135 in the year 2025 (2025-06-23 UTC)

W-SERIES 4 DEB, 69094 (Decayed)

LEMUR 2 HUBBLE-4, 64565

GOOD ANCESTOR KILAKILA, 64528

LEMUR-2-LUCILLE-ROSE, 65403

IRIDE-MS2-HEO-2, 64569

W-SERIES 4, 64543 (Decayed)

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BRO-18 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	2026-09-17 19:50:44.510Z	49.942° ENE	2026-09-17 19:52:44.510Z	88.12° E	21.524°	2026-09-17 19:55:44.510Z	145.617° SSE
5 mins	2026-09-18 08:01:44.510Z	191.67° SSW	2026-09-18 08:03:44.510Z	281.954° WNW	54.712°	2026-09-18 08:06:44.510Z	338.347° 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-18, 64550 on other resources

View BRO-18, 64550 on NASA - NSSDCA Website

View BRO-18, 64550 on Heavens-Above

View BRO-18, 64550 on Keep Track

View BRO-18, 64550 on Celestrak

View BRO-18, 64550 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-18, 64550

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: 2026-09-17T06:38:52.033Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #135 in the year 2025 (2025-06-23 UTC)

BRO-18 Visibility forecast

Co-orbital & Co-planar RSOs

Check out BRO-18, 64550 on other resources

Documentation

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