# FY4 GIIRS coefficient file

**URL:** <https://forums.jcsda.org/t/fy4-giirs-coefficient-file/435>\
**Category:** CRTM\
**Created:** [February 27, 2023, 2:31am UTC](https://forums.jcsda.org/t/fy4-giirs-coefficient-file/435 "2023-02-27T02:31:43Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![StegmannJCSDA](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.jcsda.org/stegmannjcsda/32/53_2.png) [@StegmannJCSDA](https://forums.jcsda.org/u/StegmannJCSDA)\
**Post date:** [February 28, 2023, 7:15pm UTC](https://forums.jcsda.org/t/fy4-giirs-coefficient-file/435/2 "2023-02-28T19:15:48Z")

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Hello @Jepaung , welcome to the forum.  
FY-4-GIIRS should be listed as `giirsB1_fsr_fy4a` or `giirsB2_fsr_fy4a`.

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