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COMS

COMS (Communication, Ocean and Meteorological Satellite) Program

  • Korea’s first geostationary multi-purpose satellite which is stationed at an altitude of 36,000 km above the Earth’s equator and at a longitude of 128.2°E performing the duties of meteorological and ocean observations and communications services
  • A joint project that started in 2003 by the KMA (Korea Meteorological Administration), MEST (Ministry of Education, Science & Technology), MLTM (Ministry of Land, Transport and Maritime Affairs), and KCC (Korea Communications Commission) in accordance with the Mid and Long-term National Space Development Plan
  • Korea Aerospace Research Institute is the project leader and responsible for the overall development. EDAS Astrium of France and ITT of the United States are the foreign partners involved.
  • Launched successfully from the Guiana Space Center, Kourou in French Guiana, South America on June 27, 2010
Structure of COMS
<Structure of COMS>


COMS configuration

  • Dimensions: 2.2 × 2.4 × 2.6m
  • Mass at launch: 2.5 tons
  • Operational life: 7 years
  • Manufactured by: KARI (Korea Aerospace Research Institute) and EADS Astrium of France


Changes brought on with development of geostationary meteorological satellite

Before the launch of COMS

  • Received meteorological satellite data from Japan and other countries every 30 minutes
  • Observation areas and observation times could not be adjusted
  • Forecasts based on simple image analysis were possible

After the launch of COMS

  • The operation of our own meteorological satellite made intensive monitoring of extreme weather conditions possible through observing over the Korean peninsula with maximum 8-minute interval.
  • In case of an extreme weather situation, it is possible to adjust independently the observation areas and times around the Korean peninsula.
  • It is possible to generate data to support image analysis, our own data processing systems, and a numerical forecast.


Missions of COMS

Meteorological Missions

  • Continuous monitoring of imagery and extracting of meteorological products
  • Early detection of severe weather phenomena
  • Monitoring of climate change and atmospheric environment

Sample images of 5 channels of the COMS meteorological imager
<Sample images of 5 channels of the COMS meteorological imager>


Maritime Missions

  • Monitoring of marine environment and marine ecology of seas surrounding the Korean peninsula
  • Generation of chlorophylls production estimates and fishery information
Oceans monitoring mission of COMS: (L) Analysis of the turbid water off Chinese coasts (R) Analysis of the movements of red tides off the East Coast
<Oceans monitoring mission of COMS: (L) Analysis of the turbid water off Chinese coasts (R) Analysis of the movements of red tides off the East Coast>


Communications Missions

  • Broadband satellite multimedia testing services
  • Korean Ka-band Transponders space certification

Service areas of communications repeater of COMS
<Service areas of communications repeater of COMS>


Overview of Meteorological Payload

Production:ITT of the United States

It has the same performance characteristics as the meteorological sensors mounted on GOES-8 ~ 13 of the U.S. and MTSAT-2 of Japan.



Basic Performance Data

Number of Channels 5 channels (1 visible, 4 infrared)
Observation Period Less than 27 minutes


Channels Wavelength(㎛) Spatial Resolution Applications
Visible 0.67 1Km Weekly cloud images, Asian dust, forest fires, fog observation, atmospheric motion vector
Shortwave infrared 3.7 4Km Night fog & low-level clouds, forest fire detection, land surface temperature
Water vapor 6.7 4Km Observation of mid and upper atmospheric humidity & upper atmospheric motions
Infrared 1 10.8 4Km Cloud information, sea surface temperature, Asian dust observation
Infrared 2 12.0 4Km Cloud information, sea surface temperature, Asian dust observation

Referred by NMSC(http://nmsc.kma.go.kr) website