Dataset of Japanese Satellites Launched (Japan)
This dataset contains 84 entries. Scroll for more content  

  Overview

These are the 84 satellites operated or owned by organizations in Japan, based on the interactive table representation of the UCS Satellite Database compiled by the Union of Concerned Scientist (UCS).

Most of these satellites from Japan are launched for commercial use (39.3%) and for the purpose of earth observation (41.7%).Majority of these satellites are LEO satellites, with around 56 (66.7%) launched so far.


  Data Table

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  Interactive Chart

Chart 1: Satellite Launches By Year
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Chart 2: Major Operators
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Chart 3: Satellites by Purpose
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  More..

Insights from Japan's Satellite Dataset

  Which year saw the most satellites launched for Japan?

The years are 2021 and 2014, which saw 10 satellites launched respectively.

  Who operates or owns the most satellites in Japan?

Japan Aerospace Exploration Agency (JAXA) and Sky Perfect JSAT Corporation own/operate the most number of satellites (12 - 14.3% of the satellites in this dataset).

  Which rocket has delivered the most satellites from Japan to space?

The rocket that has delivered the most satellites to space is H2A which has delivered 33 satellites (39.3%).

  Which launch site has launched the most satellites from Japan to space?

The launch site that has launched the most satellites to space is Tanegashima Space Center which has launched 33 satellites (39.3%).

  What is the most common type of satellite orbit?

Sun-Synchronous orbit is the most common type of orbit (48 satellites - 57.1%).

  Apogee, Perigee & Period

The perigees (point of the orbit closest to the Earth's center of mass) of the satellites range from 397km to 35,861km, with the average perigee being 11,287.9km from the Earth, while the apogees (point of the orbit farthest from the Earth's center of mass) of the satellites range from 413km to 38,950km, with the average apogee being 12,001.7km from the Earth. The longest period a satellite takes to orbit around the Earth is 1,442 minutes.

  Satellite Mass

The launch masses (include fuel) of the satellites range from 1kg to 5,857kg, while the dry masses (excluding fuel) of the satellites range from 1kg to 1,858kg.


IGS Optical 6.

IGS-Optical 6

  Heaviest satellite launched by Cabinet Satellite Intelligence Center (CSIC) into space at 1,600 kg

Designed for earth observation (Optical Imaging), IGS Optical 6 is a government satellite operated by Cabinet Satellite Intelligence Center (CSIC) (Japan).

A sun-synchronous LEO satellite, it was launched into space using H2A as the launch vehicle from Tanegashima Space Center on 26 February 2018. IGS Optical 6 was constructed by Mitsubishi Electric (Japan).

Designated with COSPAR ID 2018-021A and NORAD ID 43223, IGS Optical 6 is designed to operate in space for a lifetime of 5 years. It has a launch mass of 1,600 kg.

Taking 95 minutes to orbit the Earth, the satellite's perigee, which is the point of the orbit closest to the Earth's center of mass, is 485km while its apogee, which is the point of the orbit farthest from the Earth's center of mass, is 499km. The eccentricity of the orbit is 1.02E-03 and it orbits at an inclination of 97 degrees to the equatorial plane of the Earth.

 

 Compare IGS Optical 6 with Lemur 2FM101 from USA.

 Compare IGS Optical 6 with Starlink-2047 from USA.


JCSat 17.

JCSAT-17 and GEO-KOMPSAT-2B satellites separation

  Heaviest satellite launched by Japan into space at 5,857 kg

A commercial satellite, JCSat 17 is operated by Sky Perfect JSAT Corporation of Japan for the purpose of communications.

Constructed by Lockheed Martin Commercial Space Systems (USA), it was launched into space using Ariane 5 as the launch vehicle from Guiana Space Center on 18 February 2020. JCSat 17 orbits around the Earth as a GEO satellite.

Designated with COSPAR ID 2020-013A and NORAD ID 45245, JCSat 17 is designed to operate in space for a lifetime of 15 years. It has a launch mass of 5,857 kg.

With an orbital eccentricity of 3.20E-04, the satellite's perigee, which is the point of the orbit closest to the Earth's center of mass, is 35,773km while its apogee, which is the point of the orbit farthest from the Earth's center of mass, is 35,800km. It takes 1,436 minutes to orbit the Earth.

JCSat 17 orbits along the longitude of 136 degrees at an inclination of 7 degrees.

 

 Compare JCSat 17 with IRNSS-1A from India.

 Compare JCSat 17 with Intelsat 905 from USA.


Hodoyoshi-3.

Sun-rising (17th Oct.2014), Hodoyoshi-3 Wide Angle Camera

Operated by University of Tokyo and NESTRA of Japan, Hodoyoshi-3 is a government satellite launched for the purpose of technology development.

A sun-synchronous LEO satellite, it was launched into space using Dnepr as the launch vehicle from Dombarovsky Air Base on 19 June 2014. Hodoyoshi-3 was constructed by University of Tokyo (Japan).

Hodoyoshi-3 has a launch mass of 60 kg and orbits around the Earth with the COSPAR ID 2014-033F and NORAD ID 40015.

With an orbital eccentricity of 3.78E-03, the satellite's perigee, which is the point of the orbit closest to the Earth's center of mass, is 613km while its apogee, which is the point of the orbit farthest from the Earth's center of mass, is 666km. It takes 98 minutes to orbit the Earth.

With generated usable power of 50 watts, Hodoyoshi-3 orbits at an inclination of 98 degrees to the equatorial plane of the Earth.

 

 Compare Hodoyoshi-3 with OneWeb-0330 from United Kingdom.

 Compare Hodoyoshi-3 with Lemur FM122 from USA.


Get more insights from these satellite datasets

  Full datasets:  All satellites by launch date   |   The Heaviest Satellites That Are Launched to Space

  By Use Type:  Civil-use satellites   |   Commercial satellites   |   Government satellites   |   Military satellites

  By Country:  USA   |   UK   |   France   |   Germany   |   Japan   |   China   |   Russia   |   Australia   |   Canada

  By Orbit Class/Type:  LEO satellites   |   MEO satellites   |   GEO satellites   |   Elliptical orbit   |   Polar orbit   |   Equatorial orbit   |   Non-polar inclined orbit   |   Sun-synchronous orbit   |   Molniya orbit

  By Operators:  SpaceX   |   EUTELSAT   |   SES   |   European Space Agency (ESA)   |   Planet Labs   |   Iridium   |   Spire Global   |   OneWeb   |   Swarm Technologies   |   NASA - Dataset of Satellites Launched (National Aeronautics and Space Administration)   |   Canadian Space Agency (CSA) - Dataset of Satellites Launched

  By Launch Vehicle:  Falcon 9   |   Ariane 5   |   Ariane 5 ECA   |   Delta 2   |   Dnepr   |   Electron   |   Falcon Heavy   |   Long March 2C   |   Long March 2D   |   Long March 3B   |   Pegasus   |   Proton   |   Proton M   |   PSLV   |   Rokot   |   Soyuz   |   Soyuz-2.1b   |   Vega

  By Launch Vehicle:  Cape Canaveral   |   Baikonur Cosmodrome   |   Guiana Space Center   |   International Space Station   |   Jiuquan Satellite Launch Center   |   Plesetsk Cosmodrome   |   Rocket Lab Launch Complex 1   |   Satish Dhawan Space Centre   |   Taiyuan Launch Center   |   Vandenberg AFB   |   Xichang Satellite Launch Center   |   Boeing Satellite Systems   |   Airbus Defense and Space   |   EADS Astrium   |   Lockheed Martin Commercial Space Systems   |   Space Systems/Loral   |   Surrey Satellite Technology   |   Technical University Berlin   |   Thales Alenia Space


  Attributions

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