10.5.3 ACS WFC Ramp Filter Ranges

There are many wavelength ranges allowed for HST's ACS/WFC. This article provides a list of those wavelength ranges for the Astronomer's Proposal Tool (APT).

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Format definitions

Boldface type indicates the name of an APT parameter or a value for a parameter.

(red star) Black text indicates an important note.

Magenta text indicates available but unsupported parameters (requires prior approval from STScI).

Red text indicates restricted parameters (for STScI use only).

Brown text indicates text file parameters.

Items in brackets - <value> - are required values.

Items in square brackets - [<value>] - are optional.

Table 10.5: Wavelength Ranges for the WFC Ramp Filters

NameMinimum Wavelength (Å)Maximum Wavelength (Å)WFC FOV location

FR388N

3710

4049

middle

FR423N

4049

4420

inner

FR462N

4420

4824

outer

FR505N

4824

5266

middle

FR551N

5266

5748

inner

FR601N

5748

6274

outer

FR656N

6274

6848

middle

FR716N

6848

7474

inner

FR782N

7474

8158

outer

FR853N

8158

8905

inner

FR931N

8905

9719

outer

FR1016N

9719

10609

outer

FR459M

3810

5366

middle

FR647M

5366

7574

inner

FR914M

7574

10709

middle

Related Links

10.5.1 ACS WFC Spectral Elements
10.5.2 ACS WFC Permitted Filter Combinations
10.5.4 ACS WFC Allowed Combinations of Aperture, Spectral Element, and Readout
10.5.5 ACS SBC Spectral Elements
10.5.6 ACS Aperture Coordinate System




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