Ramp Filters Wavelength Transformation Coefficients

Filter Name Ramp Band Minimum l(Å) Maximum l(Å) Segment Location Filter Wheel Number x(l[Å]) = a0+ a1l+ a2l2 mm ACS #
a0 a1 a2
FR388N OII 3710 4049 middle 36 -508.138 0.069116 1.581E-05 25M
FR423N   4049 4420 inner 36 -607.847 0.143703 -2.045E-07 25I
FR462N   4420 4824 outer 36 -6.72992 -0.176012 3.832E-05 25O
                   
FR505N OIII 4824 5266 middle 50 -457.820 0.033729 1.114E-05 26M
FR551N   5266 5748 inner 50 -223.710 -0.029101 1.265E-05 26I
FR601N   5748 6274 outer 50 -492.688 0.029841 8.631E-06 26O
                   
FR656N Ha 6274 6848 middle 38 12.7666 -0.124577 1.864E-05 27M
FR716N   6848 7474 inner 38 -594.437 0.084741 -1.091E-07 27I
FR782N   7474 8158 outer 38 286.516 0.038719 -9.566E-06 27O
                   
FR853N IR 8158 8905 inner 48 -555.628 0.049673 1.803E-06 28I
FR931N   8905 9719 outer 48 635.895 -0.231669 1.751E-05 28Ob
FR1016N   9719 10609 outer 49 1013.830 -0.286947 1.840E-05 28Oc
                   
FR459M Broad 3810 5366 middle 49 -183.267 0.039206 7.841E-08 24Ma
FR647M   5366 7574 inner 49 -153.823 0.023466 6.248E-08 24I
FR914M   7574 10709 middle 48 -188.862 0.019531 1.352E-07 24Mc

Last Updated on 08/02/99
By Zlatan Tsvetanov
Email: zlatan@pha.jhu.edu