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FengYun :Fengyun, abbreviated FY, are China's weather satellites. China has launched polar orbit and geosynchronous orbit meteorological satellites since 1988.
FengYun/FY3A-IRAS :Infra-Red Atmospheric Sounder (IRAS). It is a High Resolution Infrared Radiation Sounder (HIRS)/3-like instrument. There are a total of 26 channels in this IR sounder.

FengYun/FY3A-IRAS.CH217025.977038.397014.506537.598594.41439.072773.721.69e-9FY-3AIRASFY-3A IRAS Channel 21 Spectral Response
FengYun/FY3A-IRAS.CH228865.478867.798865.368547.689239.23330.812262.318.63e-10FY-3AIRASFY-3A IRAS Channel 22 Spectral Response
FengYun/FY3A-IRAS.CH239436.759440.329433.419050.979822.82447.392207.197.44e-10FY-3AIRASFY-3A IRAS Channel 23 Spectral Response
FengYun/FY3A-IRAS.CH249452.619453.259449.649243.129640.26164.962244.727.54e-10FY-3AIRASFY-3A IRAS Channel 24 Spectral Response
FengYun/FY3A-IRAS.CH2512377.1712393.2612351.3811343.9313468.771004.541549.993.05e-10FY-3AIRASFY-3A IRAS Channel 25 Spectral Response
FengYun/FY3A-IRAS.CH2616630.2016654.8816600.5115147.8518748.521321.24988.781.08e-10FY-3AIRASFY-3A IRAS Channel 26 Spectral Response
FengYun/FY3A-IRAS.CH2037620.7837632.7237603.7435695.9939991.551273.97240.485.1e-12FY-3AIRASFY-3A IRAS Channel 20 Spectral Response
FengYun/FY3A-IRAS.CH1939803.8139806.1239799.1838969.6340815.13557.99218.864.14e-12FY-3AIRASFY-3A IRAS Channel 19 Spectral Response
FengYun/FY3A-IRAS.CH1841779.0241780.4441777.9641122.3642498.02420.31196.783.38e-12FY-3AIRASFY-3A IRAS Channel 18 Spectral Response
X
FengYun/FY3A-IRAS.CH18
Filter Description

Filter ID (?) :FengYun/FY3A-IRAS.CH18
Description (?) :FY-3A IRAS Channel 18 Spectral Response
Phot.System (?) :IRAS
Detector Type (?) :Photon counter
Band Name (?) :------
Obs. Facility (?) :FY-3A
Instrument (?) :IRAS
Comments (?) :------

 
Mathematical properties

Property Calculated Specified Unit
λref (?) : 41779.02 ------- (Angstrom)
λmean (?) : 41780.44 ------- (Angstrom)
λcen (?) : 41758.42 ------- (Angstrom)
λeff (?) : 41777.96 ------- (Angstrom)
λpeak (?) : 41720.00 ------- (Angstrom)
λpivot (?) : 41779.02 ------- (Angstrom)
λphot (?) : 41778.92 ------- (Angstrom)
λmin (?) : 41122.36 ------- (Angstrom)
λmax (?) : 42498.02 ------- (Angstrom)
Weff (?) : 420.31 ------- (Angstrom)
FWHM (?) : 360.73 ------- (Angstrom)
Af/AV (?) : 0.0562 ------- ()
Fsun (?) : 0.734 ------- (erg/cm2/s/A)

Transmission

Data file: ascii, VOTable

Reference for filter response: FengYun Spectral Response Functions

Transmission components: Filter + CCD + Instrument

   
Calibration properties

Vega System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.37995e-12(erg/cm2/s/A)
  ------- 196.78(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : FengYun/FY3A-IRAS.CH18/Vega
 

AB System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 6.23667e-11(erg/cm2/s/A)
  ------- 3631.00(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : FengYun/FY3A-IRAS.CH18/AB
 

ST System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.631e-9(erg/cm2/s/A)
  ------- 211397.59(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : FengYun/FY3A-IRAS.CH18/ST
 


Filter added: 2020-08-19 11:43:50
Last update: 2020-12-10 16:28:57
FengYun/FY3A-IRAS.CH1744437.7944439.4644435.5343658.1945216.98521.42178.862.72e-12FY-3AIRASFY-3A IRAS Channel 17 Spectral Response
FengYun/FY3A-IRAS.CH1644682.2644683.8144679.8943902.0545409.61510.46177.132.66e-12FY-3AIRASFY-3A IRAS Channel 16 Spectral Response
FengYun/FY3A-IRAS.CH1545195.1845197.0645192.1744371.6445986.78552.03173.362.54e-12FY-3AIRASFY-3A IRAS Channel 15 Spectral Response
FengYun/FY3A-IRAS.CH1445661.6045663.3145658.6344788.0046486.86532.55169.972.44e-12FY-3AIRASFY-3A IRAS Channel 14 Spectral Response
FengYun/FY3A-IRAS.CH1365404.0765436.1765353.4662159.9769664.442130.9185.916.03e-13FY-3AIRASFY-3A IRAS Channel 13 Spectral Response
FengYun/FY3A-IRAS.CH1273368.3073391.3473326.1769234.8877094.892486.5168.603.83e-13FY-3AIRASFY-3A IRAS Channel 12 Spectral Response
FengYun/FY3A-IRAS.CH1174643.2874689.2874566.6669883.8880060.093235.8365.903.55e-13FY-3AIRASFY-3A IRAS Channel 11 Spectral Response
FengYun/FY3A-IRAS.CH1096789.8696808.5396760.0593323.45100400.482264.0640.261.29e-13FY-3AIRASFY-3A IRAS Channel 10 Spectral Response
FengYun/FY3A-IRAS.CH09111154.64111211.89111057.35104158.11118524.244309.6030.657.45e-14FY-3AIRASFY-3A IRAS Channel 9 Spectral Response
FengYun/FY3A-IRAS.CH08124511.54124564.46124408.81116877.31131490.954612.7424.334.71e-14FY-3AIRASFY-3A IRAS Channel 8 Spectral Response
FengYun/FY3A-IRAS.CH07133643.21133665.81133605.87128146.74139526.273169.5221.393.59e-14FY-3AIRASFY-3A IRAS Channel 7 Spectral Response
FengYun/FY3A-IRAS.CH06136553.12136571.08136522.55131285.50141860.222908.6620.483.29e-14FY-3AIRASFY-3A IRAS Channel 6 Spectral Response
FengYun/FY3A-IRAS.CH05139835.51139854.05139804.89134771.51145150.042866.2819.553.0e-14FY-3AIRASFY-3A IRAS Channel 5 Spectral Response
FengYun/FY3A-IRAS.CH04142232.29142249.08142204.91137276.72146473.052967.3418.892.8e-14FY-3AIRASFY-3A IRAS Channel 4 Spectral Response
FengYun/FY3A-IRAS.CH03144698.95144716.85144669.97139349.07149660.472952.5618.262.62e-14FY-3AIRASFY-3A IRAS Channel 3 Spectral Response
FengYun/FY3A-IRAS.CH02147705.53147721.56147679.85143133.62152630.562812.4517.542.41e-14FY-3AIRASFY-3A IRAS Channel 2 Spectral Response
FengYun/FY3A-IRAS.CH01149458.96149463.25149451.79146935.50151624.14775.6017.152.3e-14FY-3AIRASFY-3A IRAS Channel 1 Spectral Response
 

Filter Plots (using a common λ range)

(Plot them zoomed to their own λ range)



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