Greenhouse Gases Observing Satellite-2
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.
| Names | Ibuki-2 |
|---|---|
| Mission type | Environmental |
| Operator | JAXA |
| COSPAR ID | 2018-084B |
| SATCAT no. | 43672 |
| Website | www |
| Mission duration | 5 years (planned) Elapsed: 4 years, 11 months, 12 days |
| Spacecraft properties | |
| Manufacturer | Mitsubishi Electric[1] |
| Launch mass | 1,800 kilograms (4,000 lb)[1] |
| Power | 5000 W[1] |
| Start of mission | |
| Launch date | 29 October 2018 04:08 UTC |
| Rocket | H-IIA F40 |
| Launch site | Tanegashima, Yoshinobu 1 |
| Contractor | Mitsubishi Heavy Industries |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Eccentricity | 0.00106[2] |
| Altitude | 612.98 km[2] |
| Inclination | 97.84°[2] |
| Period | 98.1 minutes[2] |
| Main Instrument | |
| Wavelengths | 0.75 – 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] |
| Resolution | 0.2 cm−1 (FTS-2) |
| Instruments | |
| TANSO-FTS-2 - Infrared Fourier Transform Spectrometer TANSO-CAI-2 - Thermal and Near-Infrared Sensor | |
Comparison to GOSAT
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]
References
- "IBUKI-2（GOSAT-2）". JAXA. Retrieved 30 April 2021.
- 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.
- "GOSAT-2 Project Site". National Institute of Environment Studies. Retrieved 30 April 2021.
- "GOSAT-2 (Greenhouse gases Observing Satellite-2) / Ibuki-2". eoPortal. Retrieved 1 May 2021.
- "GOSAT-GW". JAXA (in Japanese). Retrieved 29 April 2021.
- "Mitsubishi Electric Begins Developing the GOSAT-GW Satellite for Greenhouse Gases and Water Cycle Observation". Mitsubishi Electric (Press release). 30 March 2020. Retrieved 12 June 2020.
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