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HORYU 4, 41340

Orbit data source: Space-Track

HORYU 4, 41340 is a payload satellite owned by Kyutech (JP) in LEO that was launched on Wed, 17 Feb 2016 UTC via an H-IIA 202 launch vehicle from the Tanegashima Space Center (TNSTA). 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.

Not visible in the next 10 days

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/41340?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/41340?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

41340, 2016-012D

Orbit

LEO

Country

JP / JPN

Related business

Kyushu Institute of Technology, Cent. Nanosatellite Testing, Tobata Campus (JP)

Manufacturer

Kyutech

Mission

Operational Amateur Technology

Bus & Motor

HORYU, Unknown motor

Mass

10 kg wet, 10 kg dry

Launch date (UTC)

2016-02-17 (10 years ago)

Launch vehicle

H-IIA 202

Launch site

Tanegashima Space Center (TNSTA)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box, 0.2 m

Radar Cross Section

0.290 m², Medium (>0.1 m² and < 1m²)

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

TLE from 11 hours ago

0 HORYU 4
1 41340U 16012D   25259.19288891  .00033943  00000-0  77869-3 0  9993
2 41340  30.9946 186.7462 0005987 355.4003   4.6588 15.41476440527997

Epoch: 2025-09-16T04:37Z

TLE epoch observation values (Epoch: 2025-09-16T04:37:45.601Z)

Latitude

-0.00003°

Longitude

121.91944°

Altitude

436.171 km

Speed

7.655 km/s

True Right ascension

12h 26m 59s

True Declination

0° 00' 00"

Sunlit

Object was in daylight 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

08:30:31

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

449.731 km

Perigee altitude

441.561 km

Semi-major axis

6,823.783 km

Eccentricity

0.0006

Inclination

30.9946°

RAAN

186.7462°

Arg. of periapsis

355.4003°

True anomaly

4.66438°

Mean anomaly

4.6588°

Eccentric anomaly

4.66159°

Mean motion

3.8504 °/min

Orbital period

93.5 mins

BSTAR

0.00077869

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Computing Atmospheric mass density...

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Other satellites on launch #12 in the year 2016 (2016-02-17 UTC)

H-2A DEB, 41342 (Decayed)

ASTRO H DEB, 41438 (Decayed)

ASTRO H DEB, 41439 (Decayed)

ASTRO H DEB, 41440 (Decayed)

ASTRO H DEB, 41441 (Decayed)

ASTRO H DEB, 41442 (Decayed)

ASTRO H DEB, 41443 (Decayed)

ASTRO H DEB, 41444 (Decayed)

ASTRO H DEB, 41445 (Decayed)

ASTRO H DEB, 41446 (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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HORYU 4 Visibility

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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.
HORYU 4 is likely not visible in the next few days.

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 HORYU 4, 41340 on other resources

View HORYU 4, 41340 on NASA - NSSDCA Website

View HORYU 4, 41340 on Heavens-Above

View HORYU 4, 41340 on Keep Track

View HORYU 4, 41340 on Celestrak

View HORYU 4, 41340 on Gunter's Space Page

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

HORYU 4, 41340

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: 2025-09-16T04:37:45.601Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #12 in the year 2016 (2016-02-17 UTC)

HORYU 4 Visibility

Co-orbital & Co-planar RSOs

Check out HORYU 4, 41340 on other resources

Documentation

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