Greenhouse Gases Observing Satellite

Mission type Environmental
Operator JAXA
COSPAR ID 2009-002A
SATCAT № 33492
Mission duration 5 years, in 2014 extended for another 4 years[1]
Spacecraft properties
Manufacturer Mitsubishi Electric
Launch mass 1,750 kilograms (3,860 lb)[2]
Power 3.8 kilowatts[2]
Start of mission
Launch date January 23, 2009, 03:54 (2009-01-23UTC03:54Z) UTC
Rocket H-IIA 202
Launch site Tanegashima Yoshinobu 1
Contractor Mitsubishi
Orbital parameters
Reference system Geocentric
Regime Low Earth[3]
Perigee 674 kilometres (419 mi)[4]
Apogee 676 kilometres (420 mi)[4]
Inclination 98.06 degrees[4]
Period 98.12 minutes[4]
Mean motion 14.68[4]
Epoch 25 January 2015, 03:12:11 UTC[4]
Main Instrument
Wavelengths 12900 - 13200 cm−1 / 5800 - 6400 cm−1 / 4800 - 5200 cm−1 / 700 - 1800 cm−1 (FTS)[2]
Resolution 0.2 cm−1 (FTS)
TANSO-FTS - Infrared Fourier Transform Spectrometer
TANSO-CAI - Thermal and Near-Infrared Sensor

The Greenhouse Gases Observing Satellite or GOSAT, also known as Ibuki (いぶき Ibuki, meaning "breath"[5] or "Vitality"[6] in Japanese), is an Earth observation satellite and the world's first satellite dedicated to greenhouse-gas-monitoring.[7] It measures the densities of carbon dioxide and methane from 56,000 locations on the Earth's atmosphere.[6] The GOSAT was developed by the Japan Aerospace Exploration Agency (JAXA) and launched on January 23, 2009, from the Tanegashima Space Center.[6] Japan's Ministry of the Environment, and National Institute for Environmental Studies (NIES) [8] use the data to track gases causing the greenhouse effect, and share the data with NASA and other international scientific organizations.[7]


GOSAT was launched along with seven other piggyback probes using the H-IIA, Japan's primary large-scale expendable launch system, at 3:54 am on January 23, 2009 UTC on Tanegashima, a small island in southern Japan, after a two-day delay due to unfavourable weather.[6][7] At approximately 16 minutes after liftoff, the separation of Ibuki from the launch rocket was confirmed.[9]


According to JAXA, the Ibuki satellite is equipped with a greenhouse gas observation sensor (TANSO-FTS) and a cloud/aerosol sensor (TANSO-CAI) that supplements TANSO-FTS. The greenhouse gas observation sensor of Ibuki observes a wide range of wavelengths (near-infrared region–thermal infrared region) within the infrared band to enhance observation accuracy.[9] The satellite uses a spectrometer to measure different elements and compounds based on their response to certain types of light. This technology allows the satellite to measure "the concentration of greenhouse gases in the atmosphere at a super-high resolution."[10]

See also


  1. "GOSAT (Greenhouse gases Observing Satellite) / Ibuki". eoPortal Directory. Retrieved 2016-09-24. On January 23, 2014, GOSAT/Ibuki was 5 years on orbit. The spacecraft and its payload are operating nominally. With a nominal design life of 5 years and the good health of the spacecraft, the mission life was extended (by JAXA, NIES and MOE) for another 4 years (a contract was signed with the same operations team).
  2. 1 2 3 "Outlines of GOSAT and TANSO Sensor" (PDF). Retrieved 2009-01-26.
  3. "Orbit Insertion of the Greenhouse Gases Observing Satellite "IBUKI" (GOSAT)" (PDF) (Press release). JAXA. Retrieved 2009-01-26.
  4. 1 2 3 4 5 6 "GOSAT (IBUKI) Satellite details 2009-002A NORAD 33492". 25 January 2015. Retrieved 25 January 2015.
  5. "'IBUKI' Chosen as Nickname of the Greenhouse Gases Observing Satellite (GOSAT)" (Press release). JAXA. October 15, 2008. Retrieved 2009-05-29.
  6. 1 2 3 4 Fujioka, Chisa (Jan 23, 2009). "Japan launches satellite to monitor greenhouse gases". Reuters. Retrieved Jan 23, 2009.
  7. 1 2 3 "Japan launches rocket with greenhouse-gas probe". The Associated Press. Jan 23, 2009. Retrieved Jan 23, 2009.
  9. 1 2 "Greenhouse gases Observing SATellite "IBUKI"(GOSAT)". Japan Aerospace Exploration Agency. Retrieved Jan 23, 2009.
  10. Gerein, Keith (January 21, 2009). "Alta. scientists to track greenhouse gases from space". Calgary Herald. Retrieved January 24, 2009.

External links

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