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Greenhouse Gases Observing Satellite-2

(Redirected from GOSAT-GW)

The Greenhouse Gases Observing Satellite-2 (GOSAT-2), also known as Ibuki-2 (Japanese: いぶき2号, Hepburn: Ibuki nigō), is an Earth observation satellite dedicated to greenhouse gas monitoring. It is a successor of Greenhouse Gases Observing Satellite (GOSAT). The GOSAT-2 was developed as a joint project of the Japan Aerospace Exploration Agency (JAXA), Ministry of the Environment, and the National Institute for Environmental Studies (NIES). It was launched on 29 October 2018 from the Tanegashima Space Center aboard the H-IIA rocket.[citation needed]

Greenhouse Gases Observing Satellite-2
NamesIbuki-2
Mission typeEnvironmental
OperatorJAXA
COSPAR ID2018-084B Edit this at Wikidata
SATCAT no.43672Edit this on Wikidata
Websitewww.satnavi.jaxa.jp/e/project/gosat2/
Mission duration5 years (planned)
Elapsed: 6 years, 1 month, 27 days
Spacecraft properties
ManufacturerMitsubishi Electric[1]
Launch mass1,800 kilograms (4,000 lb)[1]
Power5000 W[1]
Start of mission
Launch date29 October 2018 04:08 (2018-10-29UTC04:08) UTC
RocketH-IIA F40
Launch siteTanegashima, Yoshinobu 1
ContractorMitsubishi Heavy Industries
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Eccentricity0.00106[2]
Altitude612.98 km[2]
Inclination97.84°[2]
Period98.1 minutes[2]
Main Instrument
Wavelengths0.75 – 0.77 μm / 1.56 – 1.69 μm / 1.92 – 2.38 μm / 5.6 – 8.4 μm / 8.4 – 14.3 μm (FTS-2)[3]
Resolution0.2 cm−1 (FTS-2)
Instruments
TANSO-FTS-2 - Infrared Fourier Transform Spectrometer
TANSO-CAI-2 - Thermal and Near-Infrared Sensor

Comparison to GOSAT

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Major changes in comparison to the previous GOSAT are:[4]

  • Improved measurement precision.
  • FTS-2 can also monitor carbon monoxide (CO) and nitrogen dioxide (NO2).
  • FTS-2 can select cloud-free point automatically for observation.
  • While GOSAT's CAI was observing nadir view, GOSAT-2's CAI-2 observes forward (20 degree) and backward (20 degree) simultaneously.
  • CAI-2 can also monitor PM2.5 and black carbon.[1]

Successor: GOSAT-GW

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As of November 2023, GOSAT-GW, the successor of GOSAT-2 and GCOM-W "Shizuku", is under development for launch in JFY2024 on the last flight of the H-IIA launch vehicle.[5]

References

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  1. ^ a b c d "IBUKI-2（GOSAT-2）". JAXA. Retrieved 30 April 2021.
  2. ^ a b c d 地球観測データ利用ハンドブック（GOSAT-2／いぶき2号） (PDF) (in Japanese). JAXA. October 2020. Retrieved 1 May 2021.
  3. ^ "GOSAT-2 Project Site". National Institute of Environment Studies. Retrieved 30 April 2021.
  4. ^ "GOSAT-2 (Greenhouse gases Observing Satellite-2) / Ibuki-2". eoPortal. Retrieved 1 May 2021.
  5. ^ "GOSAT-GW" (in Japanese). JAXA. Retrieved 22 November 2023.
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