Phase 2 Proposal Instructions for Cycle 10

12.6 Tabular Reference Data

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12.6.1 Spectral Elements for WFC and HRC

Note that except for the polarizers, only one filter may be specified for an exposure. The polarizers must be used in combination with a filter on the other filter wheel in order to maintain focus. Thus the UV polarizers (POL0UV, POL60UV, POL120UV) must be used with a filter on wheel 2 excluding: F814W, FR914N, POL0V, POL60V, POL120V. The visible polarizers (POL0V, POL60V, POL120V) must be used with a filter on wheel 1 except for: F850LP, F892N, POL0UV, POL60UV, POL120UV.

Table 12.3: 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	Ha	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	Ha ramp	ACS/WFC, ACS/HRC
2	6	FR716N	Ha ramp	ACS/WFC
2	6	FR782N	Ha 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 12.4Mode = ACQ Configuration = 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 12.4). The visible polarizers (POL0V, POL60V, POL120V) must be used with a spectral element on wheel 1 except for: F850LP, F892N, POL0UV, POL60UV, and POL120UV.

12.6.2 Ramp Filter Wavelength Ranges

Table 12.4: Wavelength Ranges for the WFC/HRC Ramp Filters

Name	Minimum Wavelength (�)	Maximum Wavelength (�)	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

 

12.6.3 Spectral Elements for ACS/SBC

Table 12.5: 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-a
3	11	PR130L	CaF2 PRISM
3	12	PR110L	LiF2 PRISM