ACS Spectral Elements Master Table

WFC/HRC Filter Wheel 1

Wheel Position Name Central l or
range (nm)
Filter
Width (nm)
Values
(ASCII file)
Figures Descriptive Name Allowed Config History
Bandpass Full Range
1 1 CLEAR1L ... ... ... n/a n/a Clear WFC aperture ...  
1 2 F555W 534.6 119.3 data 450-625 350-1050 Johnson V WFC, HRC  
1 3 F775W 776.4 152.8 data 640-900 400-1050 SDSS I WFC, HRC  
1 4 F625W 631.8 144.2 data 530-720 300-1050 SDSS r WFC, HRC  
1 5 F550M 558 54.7 data 520-600 250-1050 Narrow V WFC, HRC  
1 6 F850LP 944.5 122.9 data 750-1050 400-1050 SDSS z WFC, HRC  
1 7 CLEAR1S ... ... ... n/a n/a Clear HRC aperture ...  
1 8 POL0UV     data Bandpass Log Scale UV Polarizer 0° WFC, HRC  
1 9 POL60UV     data Bandpass Log Scale UV Polarizer 60° WFC, HRC  
1 10 POL120UV     data Bandpass Log Scale UV Polarizer 120° WFC, HRC  
1 11 F892N 891.7 15.4 data 875-910 250-1050 Methane WFC, HRC  
1 12 F606W 590.7 234.2 data 450-750 300-1050 Broad V WFC, HRC  
1 13 F502N 502.2 5.7 data 495-510 250-1050 OIII WFC, HRC  
1 14 G800L     data Bandpass Log Scale GRISM WFC, HRC  
1 15 F658N 658.4 7.3 data 645-670 250-1050 H_alpha WFC, HRC  
1 16 F475W 476.0 145.8 data 375-575 350-1050 SDSS g WFC, HRC  

WFC/HRC Filter Wheel 2

Wheel Position Name Central l or
range (nm)
Filter
Width (nm)
Values
(ASCII file)
Figures Descriptive Name Allowed Config History
Bandpass Full Range
2 1 CLEAR2L ... ... ... n/a n/a Clear WFC aperture ...  
2 2 F660N 660.2 3.5 data 645-670 250-1050 NII WFC, HRC  
2 3 F814W 833.3 251.1 data 680-980 400-1050 Broad I WFC, HRC  
2 4m FR388N 371-405 2%   Bandpass Log Scale OII Ramp (middle) WFC, HRC  
2 4i FR423N 405-442 2%   Bandpass Log Scale OII Ramp (inner) WFC  
2 4o FR462N 442-482 2%   Bandpass Log Scale OII Ramp (outer) WFC  
2 5 F435W 429.7 103.8 data 350-500 250-1050 Johnson B WFC, HRC  
2 6m FR656N 627-685 2%   Bandpass Log Scale Ha Ramp (middle) WFC, HRC  
2 6i FR716N 685-747 2%   Bandpass Log Scale Ha Ramp (inner) WFC  
2 6o FR782N 747-816 2%   Bandpass Log Scale Ha Ramp (outer) WFC  
2 7 CLEAR2S ... ... ... n/a n/a Clear HRC aperture ...  
2 8 POL0V     data Bandpass Log Scale Visible Polarizer 0° WFC, HRC  
2 9 F330W 335.4 58.8 data 290-380 250-1050 HRC u HRC  
2 10 POL60V     data Bandpass Log Scale Visible Polarizer 60° WFC, HRC  
2 11 F250W 269.6 54.9 data 190-350 150-1050 Near-UV filter HRC  
2 12 POL120V     data Bandpass Log Scale Visible Polarizer 120° WFC, HRC  
2 13 PR200L     data Bandpass Log Scale HRC PRISM HRC  
2 14 F344N 343.4 6 data 338-350 250-1050 NeV HRC  
2 15 F220W 222.8 48.5 data 180-350 150-1050 Near-UV filter HRC  
2 16i FR853N 816-891 2%   Bandpass Log Scale IR Ramp (inner) WFC  
2 16m FR914M 757-1071 9%       Broad Ramp (middle) WFC, HRC  
2 16o FR931N 891-972 2%   Bandpass Log Scale IR Ramp (outer) WFC  
2 17i FR647M 537-757 9%       Broad Ramp (inner) WFC  
2 17m FR459M 381-537 9%   Bandpass Log Scale Broad Ramp (middle) WFC, HRC  
2 17o FR1016N 972-1061 2%   Bandpass Log Scale IR Ramp (outer) WFC  
2 18m FR505N 482-527 2%   Bandpass Log Scale OIII Ramp (middle) WFC, HRC  
2 18i FR551N 527-575 2%   Bandpass Log Scale OIII Ramp (inner) WFC  
2 18o FR601N 575-627 2%   Bandpass Log Scale OIII Ramp (outer) WFC  

SBC Filter Wheel

Wheel Position Name Central l or
range (nm)
Filter
Width (nm)
Values
(ASCII file)
Figures Descriptive Name Allowed Config History
Bandpass Full Range
3 1 BLOCK1 ... ... ... n/a n/a Blocks path to the SBC ...  
3 2 F115LP     data Bandpass Log Scale MgF2 SBC  
3 3 F125LP     data Bandpass Log Scale CaF2 SBC  
3 4 BLOCK2 ... ... ... n/a n/a Blocks path to the SBC ...  
3 5 F140LP     data Bandpass Log Scale BaF2 SBC  
3 6 F150LP     data Bandpass Log Scale Crystal Quartz SBC  
3 7 BLOCK3 ... ... ... n/a n/a Blocks path to the SBC ...  
3 8 F165LP     data Bandpass Log Scale Dynasil SBC  
3 9 F122M     data Bandpass Log Scale Lyman alpha SBC  
3 10 BLOCK4 ... ... ... n/a n/a Blocks path to the SBC ...  
3 11 PR130L     data Bandpass Log Scale CaF2 Prism SBC  
3 12 PR110L     data Bandpass Log Scale LiF2 Prism SBC  

Last Updated on 01 March 2000
By Zlatan Tsvetanov
Email: zlatan@pha.jhu.edu