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KOSEN-1, 49402

Orbit data source: Space-Track

KOSEN-1, 49402 is a payload satellite owned by Kochi College (JP) in SSO that was launched on Tue, 09 Nov 2021 UTC via an EPSILON launch vehicle from the Kagoshima Space Center University Of Tokyo (KSCUT). 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/49402?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/49402?theme=dark&initialShowStats=false

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Identifier

49402, 2021-102H

Orbit

SSO

Country

JP / JPN

Related business

Kochi University of Technology (JP)

Manufacturer

Kochi College

Mission

Operational Amateur Astronomy

Bus & Motor

CUBESAT 2U, Unknown motor

Mass

3 kg wet, 3 kg dry

Launch date (UTC)

2021-11-09 (4 years ago)

Launch vehicle

EPSILON

Launch site

Kagoshima Space Center University Of Tokyo (KSCUT)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box, 0.1 m

Radar Cross Section

0.025 m², Small (<0.1 m²)

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

TLE from 11 hours ago

0 KOSEN-1
1 49402U 21102H   26095.10865292  .00010250  00000-0  40187-3 0  9991
2 49402  97.3273 138.7085 0015723 105.3412 254.9566 15.25831854242870

Epoch: 2026-04-05T02:36Z

TLE epoch observation values (Epoch: 2026-04-05T02:36:27.612Z)

Latitude

0.00006°

Longitude

-93.82536°

Altitude

494.208 km

Speed

7.616 km/s

True Right ascension

09h 14m 50s

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

19:27:53

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

496.035 km

Perigee altitude

474.452 km

Semi-major axis

6,863.38 km

Eccentricity

0.00157

Inclination

97.3273°

RAAN

138.7085°

Arg. of periapsis

105.3412°

True anomaly

254.78269°

Mean anomaly

254.9566°

Eccentric anomaly

254.86964°

Mean motion

3.81712 °/min

Orbital period

94.31 mins

BSTAR

0.00040187

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Other satellites on launch #102 in the year 2021 (2021-11-09 UTC)

OBJECT K, 49404

TEIKYOSAT-4 (OORURI), 49396

EPSILON R/B, 49405 (Decayed)

DRUMS TARGET-2, 58954 (Decayed)

DRUMS TARGET-1, 55685 (Decayed)

ASTERISC, 49395 (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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KOSEN-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	2026-04-05 15:45:53.412Z	9.907° NNE	2026-04-05 15:48:53.412Z	206.651° SW	42.531°	2026-04-05 15:51:53.412Z	194.985° SSW
5 mins	2026-04-06 02:21:53.412Z	124.403° SE	2026-04-06 02:23:53.412Z	74.478° E	27.205°	2026-04-06 02:26:53.412Z	10.996° 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 KOSEN-1, 49402 on other resources

View KOSEN-1, 49402 on NASA - NSSDCA Website

View KOSEN-1, 49402 on Heavens-Above

View KOSEN-1, 49402 on Keep Track

View KOSEN-1, 49402 on Celestrak

View KOSEN-1, 49402 on Gunter's Space Page

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

KOSEN-1, 49402

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: 2026-04-05T02:36:27.612Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #102 in the year 2021 (2021-11-09 UTC)

KOSEN-1 Visibility forecast

Co-orbital & Co-planar RSOs

Check out KOSEN-1, 49402 on other resources

Documentation

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