wheel1
wheel1:
| (id1 = | "U") | Short identifier for filter in position 1 |
| (name1 = | "U c6001") | Full name of filter in position 1 |
| (focus1 = | -200.) | Focus value for filter 1 \n |
| (id2 = | "B") | Short identifier for filter in position 2 |
| (name2 = | "B Harris c6002") | Full name of filter in position 2 |
| (focus2 = | 10.) | Focus value for filter 2 \n |
| (id3 = | "V") | Short identifier for filter in position 3 |
| (name3 = | "V Harris c6026") | Full name of filter in position 3 |
| (focus3 = | 30.) | Focus value for filter 3 \n |
| (id4 = | "R") | Short identifier for filter in position 4 |
| (name4 = | "R Harris c6004") | Full name of filter in position 4 |
| (focus4 = | 0.) | Focus value for filter 4 \n |
| (id5 = | "I") | Short identifier for filter in position 5 |
| (name5 = | "I c6028") | Full name of filter in position 5 |
| (focus5 = | 0.) | Focus value for filter 5 \n |
| (id6 = | "z") | Short identifier for filter in position 6 |
| (name6 = | "z SDSS c6020") | Full name of filter in position 6 |
| (focus6 = | -15.) | Focus value for filter 6 \n |
| (id7 = | "M") | Short identifier for filter in position 7 |
| (name7 = | "M Washington c6007") | Full name of filter in position 7 |
| (focus7 = | 65.) | Focus value for filter 7 \n |
| (id8 = | "D51") | Short identifier for filter in position 8 |
| (name8 = | "DDO 51 c6008") | Full name of filter in position 8 |
| (focus8 = | -35.) | Focus value for filter 8 \n |
| (id9 = | "VR") | Short identifier for filter in position 9 |
| (name9 = | "VR SuperMacho c6027") | Full name of filter in position 9 |
| (focus9 = | 30.) | Focus value for filter 9 \n |
| (id10 = | "o3") | Short identifier for filter in position 10 |
| (name10 = | "o3 OIII c6014") | Full name of filter in position 10 |
| (focus10 = | 130.) | Focus value for filter 10 \n |
| (id11 = | "g") | Short identifier for filter in position 11 |
| (name11 = | "g SDSS c6017") | Full name of filter in position 11 |
| (focus11 = | 30.) | Focus value for filter 11 \n |
| (id12 = | "r") | Short identifier for filter in position 12 |
| (name12 = | "r SDSS c6018") | Full name of filter in position 12 |
| (focus12 = | 120.) | Focus value for filter 12 \n |
| (id13 = | "i") | Short identifier for filter in position 13 |
| (name13 = | "i SDSS c6019") | Full name of filter in position 13 |
| (focus13 = | -20.) | Focus value for filter 13 \n |
| (id14 = | "u") | Short identifier for filter in position 14 |
| (name14 = | "u SDSS c6021") | Full name of filter in position 14 |
| (focus14 = | 230.) | Focus value for filter 14 \n |
| (first_pos = | 1.) | First Filter positions in wheel (read only) |
| (last_pos = | 14.) | Last Filter positions in wheel (read only) |
| (mode = | "ql") |
The wheel1 parameter file contains all of the information about the filters: their short identifiers (the name you type when requesting that Arcon use a certain filter, and the name that appears on the GUI), their full names, and their focus offsets with respect to the R filter. The focus offset is applied automatically when taking an exposure; Arcon assumes that the base focus value that appears in instrpars (see above and the section on the focus procedure) corresponds to the R filter. Normally, you should not need to change anything in the wheel1 parameter file; we recommend, however, that you check to make sure that the focus offsets are set to the measured values listed on the filter page.
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