11.6 Tabular Reference Data
11.6.1 Spectral Elements for WFC and HRC
Table 11.2: Spectral Elements for use with ACS/WFC and ACS/HRC Configurations a
Wheel |
Position |
Name |
Description |
Allowed Configurations |
1 |
2 |
F555W |
Johnson V |
ACS/WFC, ACS/HRC |
1 |
3 |
F775W |
SDSS i |
ACS/WFC, ACS/HRC |
1 |
4 |
F625W |
SDSS r |
ACS/WFC, ACS/HRC |
1 |
5 |
F550M |
narrow V |
ACS/WFC, ACS/HRC |
1 |
6 |
F850LP |
SDSS z |
ACS/WFC, ACS/HRC |
1 |
8 |
POL0UV |
UV polarizer 0 deg |
ACS/WFC, ACS/HRC |
1 |
9 |
POL60UV |
UV polarizer 60 deg |
ACS/WFC, ACS/HRC |
1 |
10 |
POL120UV |
UV polarizer 120 deg |
ACS/WFC, ACS/HRC |
1 |
11 |
F892N |
methane |
ACS/WFC, ACS/HRC |
1 |
12 |
F606W |
broad V |
ACS/WFC, ACS/HRC |
1 |
13 |
F502N |
O III |
ACS/WFC, ACS/HRC |
1 |
14 |
G800L |
GRISM |
ACS/WFC, ACS/HRC |
1 |
15 |
F658N |
H  |
ACS/WFC, ACS/HRC |
1 |
16 |
F475W |
SDSS g |
ACS/WFC, ACS/HRC |
2 |
2 |
F660N |
N II |
ACS/WFC, ACS/HRC |
2 |
3 |
F814W |
Johnson I |
ACS/WFC, ACS/HRC |
2 |
4 |
FR388N |
O II Ramp |
ACS/WFC, ACS/HRC |
2 |
4 |
FR423N |
O II Ramp |
ACS/WFC |
2 |
4 |
FR462N |
O II Ramp |
ACS/WFC |
2 |
5 |
F435W |
Johnson B |
ACS/WFC, ACS/HRC |
2 |
6 |
FR656N |
H  ramp |
ACS/WFC, ACS/HRC |
2 |
6 |
FR716N |
H  ramp |
ACS/WFC |
2 |
6 |
FR782N |
H  ramp |
ACS/WFC |
2 |
8 |
POL0V |
visible polarizer 0 deg |
ACS/WFC, ACS/HRC |
2 |
9 |
F330W |
HRC u |
ACS/HRC |
2 |
10 |
POL60V |
visible polarizer 60 deg |
ACS/WFC, ACS/HRC |
2 |
11 |
F250W |
near-UV filter |
ACS/HRC |
2 |
12 |
POL120V |
visible polarizer 120 deg |
ACS/WFC, ACS/HRC |
2 |
13 |
PR200L |
HRC PRISM |
ACS/HRC |
2 |
14 |
F344N |
Ne V |
ACS/HRC |
2 |
15 |
F220W |
near-UV filter |
ACS/HRC |
2 |
16 |
FR914M |
Broad Ramp |
ACS/WFC, ACS/HRC |
2 |
16 |
FR853N |
IR Ramp |
ACS/WFC |
2 |
16 |
FR931N |
IR Ramp |
ACS/WFC |
2 |
17 |
FR459M |
Broad Ramp |
ACS/WFC, ACS/HRC |
2 |
17 |
FR647M |
Broad Ramp |
ACS/WFC |
2 |
17 |
FR1016N |
IR Ramp |
ACS/WFC |
2 |
18 |
FR505N |
O III Ramp |
ACS/WFC, ACS/HRC |
2 |
18 |
FR551N |
O III Ramp |
ACS/WFC |
2 |
18 |
FR601N |
O III Ramp |
ACS/WFC |
a. Note: Normally only one spectral element may be specified for an exposure. The exceptions are:
1) As noted in Section 11.4 Mode = ACQ Config = ACS/HRC, three filter pairs are permitted for ACQ mode exposures of bright targets.
2) The polarizers must be used with another spectral element. This is required to maintain focus. The UV polarizers (POL0UV, POL60UV, POL120UV) must be used with a spectral element on wheel 2 except for: POL0V, POL60V, POL120V, and any inner or outer ramp filter segment (see Table 11.5). The visible polarizers (POL0V, POL60V, POL120V) must be used with a spectral element on wheel 1 except for: F850LP, F892N, POL0UV, POL60UV, and POL120UV.
Permitted Filter Combinations
Only a subset of possible combinations of spectral elements are permitted. In the following tables, an "S" indicates combinations that are supported. Combinations marked with "O" are permitted ONLY for Mode = ACQ exposures and are intended for use with bright targets.
Table 11.3: Permitted WFC filter combinations for Mode = ACCUM
|
Filter Wheel 1 Spectral Element |
F555W |
F775W |
F625W |
F550M |
F850LP |
POL0UV |
POL60UV |
POL120UV |
F892N |
F606W |
F502N |
G800L |
F658N |
F475W |
|
Filter Wheel 2 Spectral Element |
F660N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
F814W |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR388N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR423N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR462N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
F435W |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR656N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR716N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR782N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
POL0V |
|
S |
|
|
|
|
|
|
|
S |
|
|
|
S |
|
F330W |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
POL60V |
|
S |
|
|
|
|
|
|
|
S |
|
|
|
S |
|
F250W |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
POL120V |
|
S |
|
|
|
|
|
|
|
S |
|
|
|
S |
|
PR200L |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
F344N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
F220W |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR914M |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR853N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR931N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR459M |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR647M |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR1016N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR505N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR551N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR601N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Table 11.4: Permitted HRC Filter Coimbinations for Mode = ACCUM and Mode = ACQ
|
Filter Wheel 1 Spectral Element |
F555W |
F775W |
F625W |
F550M |
F850LP |
POL0UV |
POL60UV |
POL120UV |
F892N |
F606W |
F502N |
G800L |
F658N |
F475W |
|
Filter Wheel 2 Spectral Element |
F660N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
F814W |
|
|
|
|
|
S |
S |
S |
|
|
|
|
|
|
|
FR388N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR423N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR462N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
F435W |
|
|
|
|
|
S |
S |
S |
|
|
|
|
|
|
|
FR656N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR716N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR782N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
POL0V |
|
S |
S |
|
|
|
|
|
|
S |
|
|
S |
S |
|
F330W |
|
|
|
|
|
S |
S |
S |
|
|
|
|
|
|
|
POL60V |
|
S |
S |
|
|
|
|
|
|
S |
|
|
S |
S |
|
F250W |
|
|
|
|
|
S |
S |
S |
|
|
|
|
|
|
|
POL120V |
|
S |
S |
|
|
|
|
|
|
S |
|
|
S |
S |
|
PR200L |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
F344N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
F220W |
|
|
O |
|
|
S |
S |
S |
|
O |
O |
|
|
|
|
FR914M |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR853N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR931N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR459M |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR647M |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR1016N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR505N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR551N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FR601N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
11.6.2 Ramp Filter Wavelength Ranges
Table 11.5: Wavelength Ranges for the WFC/HRC Ramp Filters
Name |
Minimum 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 |
11.6.3 Spectral Elements for ACS/SBC
Table 11.6: Spectral Elements for use with the ACS/SBC Configuration
Wheel |
Position |
Name |
Description |
3 |
2 |
F115LP |
MgF2 |
3 |
3 |
F125LP |
CaF2 |
3 |
5 |
F140LP |
BaF2 |
3 |
6 |
F150LP |
crystal quartz |
3 |
8 |
F165LP |
Suprasil |
3 |
9 |
F122M |
Ly-  |
3 |
11 |
PR130L |
CaF2 PRISM |
3 |
12 |
PR110L |
LiF2 PRISM |
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