Filters available for use in WIRC are listed below. The filters are used at approximately 77K and 7 degrees angle of incidence(AOI).  Most of the manufacturer's provided transmission profiles are for 300K and 0 degrees AOI.  Both the temperature and tilt cause a shift of the filter transmission profile blueward.  Corrections for these effects have been applied to the manufacturer's supplied data where possible.

Filter	Scanned Zoomed Profile	Original Data (3)	Temperature & Tilt Corrected Data (4,5)	Manufacturer	Note
J-Cont	J-Cont Zoomed Graph	J-Cont Original	J -Cont Temp & Tilt	NDC
Pa-Beta	Pa-Beta Zoomed Graph	Pa-Beta Original	Pa-Beta Temp & Tilt	NDC
H-Cont	H Zoomed Graph	H-Cont Original	H-Cont Temp & Tilt	NDC
Fe-II	Fe-II Zoomed Graph	Fe-II Original	Fe-II Temp & Tilt	NDC
Br-Gamma	Br-Gamma Zoomed Graph	Br-Gamma Original	Br-Gamma Temp & Tilt	NDC
K-Cont	K Zoomed Graph	K-Cont Original	K-Cont Temp & Tilt	NDC
CO(2-O BH)	CO(2-O BH) Zoomed Graph	CO(2-O BH) Original	CO(2-O BH) Temp & Tilt	NDC

Filter	Scanned Zoomed Profile	Original Data	Tilt Corrected Data	Temperature Shift	Manufacturer	Note
CH4_L	CH4_L Zoomed Graph	CH4_L Original	CH4_L Tilt	cut-on: - 13.9536 nm cut-off: - 12.8952 nm	NDC	6
CH4_S	CH4_S Zoomed Graph	CH4_S Original	CH4_S Tilt	cut-on: - 13.9536 nm cut-off: - 13.176 nm	NDC	6

(1) The following values are taken from the side of the filter boxes.  Although they do not match the scanned data, the graphs are representative of standard H and K transmission.

                 J Filter                        H Filter               
        SO: 14-8744-460           SO: 14-8744-460
        PO: 393 745                   PO: 393 745
        RN: 1011-534Z/541Z    RN: 563-606/607
        SN: 33                           SN: 41
        LOT: 4Z                         LOT: 7

(2) AOI for original data is 5 degrees.

(3) Original Data taken at 300K and 0 angle of incidence.

(4)  Wavelength shifts due to temperature were derived using center wavelength v. temperature data for a sample as measured by the manufacturer (see plots below).  The difference between the peak temperature (300K for narrowband filters, 293K for methane filters) and the operational temperature of 77K was taken to establish a delta wavelength.  This value was then subtracted from the reported wavelengths in the original data to establish the working wavelengths at 77K.  

(5)  Wavelength shifts due to filter tilt were made according to Ghinassi, F. et al.(A&A 386, 1157. 2002).  The degree of tilt was taken to be 7 degrees, and the filter index of refraction was estimated to be 2, as recommended in the paper.

(6) Two equations were given for temperature corrections.