Filter plotting page:

This page allows you to plot arbitrary filters or filter sets in a variety of different colors; it also will compute some parameters which describe the filter bandpass. To use it, select the filter(s) you wish to plot, and select a color to use for the plot. If you wish you plot an entire subset of filters, simply use the menu for the subset to plot all filters in that subset in some desired color. Then click one of the "Plot selected filters" button to generate the plot.

You can choose here to either have filters plotted with their actual throughput (default), or normalized to have peak throughput of unity.

True throughput Normalized throughput

At the current time, filter profiles are plotted raw, i.e. without any contribution from a telescope, instrument, or detector response function. The filter parameters (mean wavelength, width, and qtdl) are also computed for a raw filter profile.

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WFPC2 filters:

  • 28 Broad & medium band
    • 7 far-UV (<2000) :

    • 21 UV/vis :

  • 13 Narrow-band :

  • 7 Specialty:
    Methane quad (543N, 619N, 727N, 893N) Polarizer quad UV Narrow quad (376N, 384N, 392N, 399N) FR418N ramp FR533N ramp FR680N ramp FR868N ramp
True throughput Normalized throughput

ACS filters:

True throughput Normalized throughput

DRM proposed new filters:

WFC3 Strawman list:

True throughput Normalized throughput
Standard filter sets:
  • UBVRI :
  • Washington :
  • Stromgren :
True throughput Normalized throughput
IR filters:
  • Narrow band
    [SII] 10400+10600 HeI 10830 FeII 16400 Pa 18700 SiVII 1xxxx H20 HeI CH4

  • Broad band
    broad J broad H J1 J2 very broad JH Gunn z
  • Others
    grism