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KSF3-B, 55019

Orbit data source: Space-Track

KSF3-B, 55019 is a payload satellite owned by Kleos Space (LU) in SSO that was launched on Tue, 03 Jan 2023 UTC via an FALCON 9 launch vehicle from the Air Force Eastern Test Range (AFETR). 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/55019?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/55019?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

55019, 2023-001L

Orbit

SSO

Country

Unknown / LUXE

Related business

Kleos Space (LU)

Manufacturer

ISIS BV

Mission

Operational Commercial Sigint

Bus & Motor

CUBESAT 6U, Unknown motor

Mass

~10 kg wet, ~10 kg dry

Launch date (UTC)

2023-01-03 (3 years ago)

Launch vehicle

FALCON 9

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box, 0.1 m

Radar Cross Section

0.080 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 KSF3-B
1 55019U 23001L   25286.94327485  .00138851  00000-0  13940-2 0  9996
2 55019  97.3578   1.6267 0004030 172.0434 188.0890 15.65032109155334

Epoch: 2025-10-13T22:38Z

TLE epoch observation values (Epoch: 2025-10-13T22:38:18.947Z)

Latitude

-0.00002°

Longitude

-0.69105°

Altitude

378.993 km

Speed

7.681 km/s

True Right ascension

00h 06m 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

02:54:07

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

372.77 km

Perigee altitude

367.331 km

Semi-major axis

6,748.187 km

Eccentricity

0.0004

Inclination

97.3578°

RAAN

1.6267°

Arg. of periapsis

172.0434°

True anomaly

188.08251°

Mean anomaly

188.089°

Eccentric anomaly

188.08575°

Mean motion

3.91528 °/min

Orbital period

91.95 mins

BSTAR

0.001394

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Other satellites on launch #1 in the year 2023 (2023-01-03 UTC)

FLOCK 4Y 33, 55042 (Decayed)

FLOCK 4Y 28, 55033 (Decayed)

ASTROCAST-0402, 55109

SPHERE-1 EYE, 55072 (Decayed)

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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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KSF3-B 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.
4 mins	2025-10-14 17:37:02.904Z	36.927° NE	2025-10-14 17:39:02.904Z	101.592° ESE	30.258°	2025-10-14 17:41:02.904Z	162.034° S
4 mins	2025-10-15 05:28:02.904Z	198.482° SSW	2025-10-15 05:30:02.904Z	284.175° WNW	32.308°	2025-10-15 05:32:02.904Z	330.943° NNW

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

Please sign-in to view Co-orbital & Co-planar RSOs.

Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in ascending order

CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out KSF3-B, 55019 on other resources

View KSF3-B, 55019 on NASA - NSSDCA Website

View KSF3-B, 55019 on Heavens-Above

View KSF3-B, 55019 on Keep Track

View KSF3-B, 55019 on Celestrak

View KSF3-B, 55019 on Gunter's Space Page

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

KSF3-B, 55019

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: 2025-10-13T22:38:18.947Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #1 in the year 2023 (2023-01-03 UTC)

KSF3-B Visibility forecast

Co-orbital & Co-planar RSOs

Check out KSF3-B, 55019 on other resources

Documentation

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