Greenhouse Gases Observing Satellite-2

Earth observation satellite

Greenhouse Gases Observing Satellite-2Names| Ibuki-2

|

Mission type| Environmental
Operator| JAXA
COSPAR ID| 2018-084B
SATCAT no.| 43672
Website| www.satnavi.jaxa.jp/e/project/gosat2/
Mission duration| 5 years (planned)
Elapsed: 6 years, 8 months, 11 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 (2018-10-29UTC04:08) 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

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]

## Comparison to GOSAT

[edit]

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

[edit]

GOSAT-GW (Ibuki GW), the successor of GOSAT-2 and GCOM-W "Shizuku", was launched on 28 June 2025 on the last flight of the H-IIA launch vehicle.[5] It was under development for launch in JFY2024.[6] Due to the delay of development, it was delayed to be launched in JFY2025.[7]

## References

[edit]

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. ^ 温室効果ガス・水循環観測技術衛星（GOSAT-GW）の打上げ時刻および打上げ時間帯 (in Japanese). JAXA. 27 June 2025. Retrieved 27 June 2025.
6. ^ "GOSAT-GW" (in Japanese). JAXA. Retrieved 22 November 2023.
7. ^ H2Aロケット 最後の打ち上げ 人工衛星開発遅れ 来年度に延期へ (in Japanese). NHK. 9 December 2024. Retrieved 10 December 2024.

## External links

[edit]

* GOSAT-2 site by JAXA
* GOSAT site by NIES
* GOSAT-2 site by NIES

* v
* t
* e

Japanese space program

* Italics indicates projects in development.
* Symbol † indicates failed projects.
* ~~Strikethrough lines~~ indicate cancelled projects.

Space agencies

| National space agencies|

* JAXA
* former ISAS
* NAL
* NASDA
* NICT
* JSS

|

Joint development partners|

*  United States NASA1
* ESA2
*  Italy ASI3
*  Canada CSA4
*  Russia Roscosmos5
*  Brazil AEB6
* INPE7
*  India ISRO8

Astronomical observation

| Past|

* Akari
* ASCA
* ASTRO-E†
* ~~Astro-G~~
* CORSA†
* Ginga
* Hakucho
* HALCA
* Hinotori
* Hitomi†
* ~~SPICA~~
* Suzaku
* Tenma
* Yohkoh

|

Active|

* Hinode
* Hisaki
* XRISM1

Future|

* ATHENA2
* SOLAR-C1
* GREX-PLUS [ja]
* HiZ-GUNDAM [ja]
* LAPYUTA
* LiteBIRD
* Nancy Grace Roman Space Telescope1
* JASMINE

Communications satellites, broadcasting satellites and satellite navigation systems

| Past|

* BS
* 2X
* 3H
* 3N
* Kakehashi
* Kirari
* Kizuna
* Kodama
* MBSat
* N-STAR
* a
* b
* Sakura (1
* 2a
* 2b
* 3a
* 3b)
* Yuri
* 1
* 2a
* 2b
* 3a
* 3b

|

Active|

* Kirameki
* 1
* 2
* Michibiki
* 1
* 2
* 3
* 4
* 1R
* MTSAT
* N-STAR
* c
* d
* JDRS

Future|

* DSN
* 3
* QZS
* 5
* 6
* 7

Earth observation

| Past|

* Akebono
* Daichi
* 1
* 3†
* Denpa
* Fuyo-1
* Jikiken
* Kyokko
* Midori
* I
* II
* Momo
* 1
* 1b
* Ohozora
* Taiyo
* TRMM1
* Ume
* 1
* b
* Geotail1

|

Active|

* Aqua1,7
* Arase
* ASNARO
* 1
* 2
* Daichi
* 2
* 4
* EarthCARE2
* GPM1
* Himawari
* Ibuki
* original
* 2
* Shikisai
* Shizuku

Future|

* GOSAT-GW
* PMM

Engineering tests

| Past|

* Ayame
* 1
* 2
* DASH
* EXPRESS
* IKAROS
* Jindai
* Kiku
* 1
* 2
* 3
* 4
* 5
* 6
* 7
* 8
* LDREX
* 1
* 2
* LRE
* Micro LabSat-1
* Myojo
* Ohsumi
* Orizuru
* RAISE
* 2
* 3†
* ~~PETSAT~~
* RAPIS-1
* Ryusei
* SERVIS-1
* SERVIS-2
* SDS-1
* SFU
* Shinsei
* ~~SmartSat-1~~
* Tansei
* 1
* 2
* 3
* 4
* Tasuki
* Tsubame
* Tsubasa
* USERS

|

Active|

* Ajisai
* Reimei
* SDS-4

Future|

* BEAK
* ETS-IX
* G-SATELLITE
* SERVIS-3

Human spaceflight

| Past|

* ~~Fuji crewed spacecraft~~
* ~~HOPE-X~~
* H-II Transfer Vehicle

|

Active|

* International Space Station (ISS) & Japanese Experiment Module (Kibō)1,2,3,4,5,6

Future|

* HTV-X
* Japanese Space Station Module (Mitsui)
* Lunar Gateway1,2,4

Space probes

| The Moon|

| Past|

* Hakuto-R Mission 1†
* Hiten
* ~~Lunar-A~~
* Kaguya (SELENE)
* OMOTENASHI†
* ~~SELENE-2~~
* Smart Lander for Investigating Moon (SLIM)
* Hakuto-R Mission 2†

|

Active|

* EQUULEUS

Future|

* HERACLES2,4
* Lunar Cruiser
* Lunar Polar Exploration Mission8 (LUPEX)
* Yaoki

Others|

| Past|

* Hayabusa
* ~~Hayabusa Mk2~~
* Nozomi†
* PROCYON†
* Sakigake
* Shin'en†
* Suisei

|

Active|

* Akatsuki
* BepiColombo (MMO/Mio)2
* Hayabusa2
* Jupiter Icy Moons Explorer2
* Hera2

Future|

* Comet Interceptor2
* DESTINY+
* Dragonfly1
* MELOS
* Martian Moons eXploration
* Next Generation Small-Body Sample Return
* TEREX

Reconnaissance satellites

| Past|

* IGS-Optical
* 1
* 2
* Experimentally 3
* IGS-Radar
* 1
* 2

|

Active|

* IGS-Optical
* 3
* 4
* 5
* 6
* Experimentally 5
* IGS-Radar
* 3
* 4
* Spare
* 5
* 6

Future|

* IGS-Optical
* 7
* 8
* IGS-Radar
* 7
* 8

Private small satellites

| Past|

* CosMoz
* CUTE
* 1.7+APD
* Fuji
* 1
* 2
* Hayato
* HIBARI
* HIT-SAT
* Kagayaki
* Kanta-kun (WEOS)
* Kūkai
* Maido-1
* Negai☆″
* Niwaka
* RAIKO
* Waseda-SAT2
* WE WISH

|

Active|

* CUTE
* 1
* 1.7+APDII
* Fuji-3
* Hitomi
* Hodoyoshi
* 1
* 2
* 3
* 4
* Horyu
* 2
* Kiseki
* PROITERES
* Raijin
* Raijin-2
* SEEDS
* SOCRATES
* XI
* IV
* V

Future|

* DRUMS
* KITSUNE
* OPUSAT-II
* QSAT-EOS
* RSP-01
* SOMESAT
* SpaceTuna1
* SPROUT
* TSUBAME
* WNI satellite

* v
* t
* e

← 2017

Orbital launches in 2018

2019 →

January|

* USA-280 / Zuma
* BeiDou-3 M7, BeiDou-3 M8
* Cartosat-2F, ICEYE-X1, Microsat-TD, Arkyd-6A, Carbonite-2, Flock-3p' × 4, Fox-1D, Landmapper BC 3 v2, Lemur-2 × 4, PicSat, SpaceBEE × 4
* USA-281 / Topaz-5
* Jilin-1 Video-07, Jilin-1 Video-08, Kepler 0 KIPP
* USA-282 / SBIRS-GEO-4
* Humanity Star, Dove Pioneer, Lemur-2 × 2
* Yaogan 30-04 (3 satellites)
* SES-14, Al Yah 3
* GovSat-1 / SES-16

February|

* Kanopus-V No. 3, No. 4, S-Net × 4 , Lemur-2 × 4
* CSES, ÑuSat 4, 5
* TRICOM-1R
* Falcon Heavy test flight (Tesla Roadster)
* BeiDou-3 M3, M4
* Progress MS-08
* Paz, Tintin A & B
* IGS-Optical 6

March|

* GOES-17
* Hispasat 30W-6
* O3b × 4 (FM13 to FM16)
* Soyuz MS-08
* GSAT-6A
* EMKA / Kosmos 2525
* BeiDou-3 M9, M10
* Iridium NEXT 41–50
* Gaofen-1-02, 03, 04

April|

* Dragon CRS-14, 1KUNS-PF, Irazú, UBAKUSAT
* Superbird-B3, HYLAS-4
* Yaogan 31A, 31B, 31C, Weina 1B
* IRNSS-1I
* AFSPC-11, EAGLE
* Blagovest-12L / Kosmos 2526
* TESS
* Sentinel-3B
* Zhuhai-1 × 5

May|

* Apstar 6C
* InSight, MarCO A, MarCO B
* Gaofen 5
* Bangabandhu-1
* Chang'e 4 Relay, Longjiang 1, Longjiang 2
* Cygnus CRS OA-9E (EnduroSat One, EQUiSat, Lemur-2 × 4, RaInCube)
* Iridium NEXT 51–55, GRACE-FO 1, GRACE-FO 2

June|

* Gaofen-6
* SES-12
* Fengyun-2H
* Soyuz MS-09
* IGS-Radar 6
* GLONASS-M 756 / Kosmos 2527
* XJSS A, B
* Dragon CRS-15 (Biarri-Squad × 3, BHUTAN-1, Maya-1, UiTMSAT-1)

July|

* PRSS-1, PakTES-1A
* BeiDou IGSO-7
* Progress MS-09
* Telstar 19V
* Galileo FOC 19–22
* Iridium NEXT 56–65
* BeiDou-3 M5, M6
* Gaofen 11

August|

* Telkom-4 / Merah Putih
* Parker Solar Probe
* ADM-Aeolus
* BeiDou-3 M11, BeiDou-3 M12

September|

* HY-1C
* Telstar 18V
* ICESat-2 — SSTL S1-4, NovaSAR-1
* BeiDou-3 M13, M14
* Kounotori 7
* Azerspace-2 / Intelsat 38, Horizons-3e
* CentiSpace-1-S1

October|

* SAOCOM 1A
* Yaogan 32A, 32B
* Soyuz MS-10
* BeiDou-3 M15, M16
* AEHF-4
* BepiColombo
* HY 2B
* Lotos-S1 No. 3 / Kosmos 2528
* Weilai-1
* CFOSAT
* GOSAT-2, KhalifaSat, Diwata-2B, Stars-AO, AUTcube2

November|

* BeiDou-3 G1Q
* Kosmos 2529 / GLONASS-M 757
* MetOp-C
* IRVINE01, Lemur-2 × 2
* GSAT-29
* Es'hail 2
* Progress MS-10
* Cygnus NG-10
* BeiDou-3 M17, BeiDou-3 M18
* Shiyan 6-01
* Mohammed VI-B
* HySIS, Blacksky Global 1, FACSAT-1, Flock-3r × 16, Kepler 1 CASE, Lemur-2 × 4
* Kosmos 2530 / Strela-3M 16, Kosmos 2531 / Strela-3M 17, Kosmos 2532 / Strela-3M 18

December|

* Soyuz MS-11
* SHERPA, Blacksky Global 2, Capella 1, ESEO, Eu:CROPIS, FalconSAT 6, ICEYE X2, SkySat 14, SkySat 15, STPSat 5, ENOCH, Flock-3s × 3, IRVINE02, Landmapper BC 4, MinXSS-2, Orbital Reflector, PW-Sat 2, SpaceBEE × 3
* GSAT-11, Chollian-2A
* SpaceX CRS-16 (TechEdSat 8, UNITE)
* Chang'e 4 (Yutu-2)
* CubeSail, RSat-P, STF-1
* GSAT-7A
* CSO-1
* Kosmos 2533 / Blagovest-13L
* USA-289 / GPS IIIA-01
* Kanopus-V No. 5, No. 6, Flock-3k × 12, Lemur-2 × 8, Lume-1
* Yunhai-2 01 (6 satellites)

Launches are separated by dots ( • ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ).
Crewed flights are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).
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