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chara:fringe_offsets [2022/05/24 19:25] gail_stargazer |
chara:fringe_offsets [2022/06/20 16:36] gail_stargazer |
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The fringe offsets on any given night will depend on the POP configuration and the daily alignment. The table below gives a range of values where the fringes have been found for each cart on multiple nights across different POP configurations. The ranges should at least provide a guide for how far one might need to look to find fringes. The relative offsets between any pair of telescopes can be calculated from the differences between the ranges. | The fringe offsets on any given night will depend on the POP configuration and the daily alignment. The table below gives a range of values where the fringes have been found for each cart on multiple nights across different POP configurations. The ranges should at least provide a guide for how far one might need to look to find fringes. The relative offsets between any pair of telescopes can be calculated from the differences between the ranges. | ||
- | A new baseline solution was created on 2022Mar21 | + | A new baseline solution was created on 2022Jun18 |
- | S1: -2.1 mm to 1.5 mm\\ | + | S1: -0.7 mm to +0.5 mm\\ |
- | S2: -0.8 mm to +0.6 mm\\ | + | S2: -2.6 mm to +0.7 mm\\ |
- | E1: +0.1 mm to +1.5 mm\\ | + | E1: -0.3 mm to +0.4 mm\\ |
- | E2: -0.1 mm to +3.5 mm\\ | + | E2: -0.3 mm to +0.5 mm\\ |
- | W1: +1.1 mm to +2.9 mm\\ | + | W1: -3.8 mm to +0.4 mm\\ |
W2: Reference Cart | W2: Reference Cart | ||
- | {{: | + | {{: |
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+ | A new baseline solution was created on 2022May19 and has been in use since 2022May22. There seems to be a small dependence on elevation for some of the telescopes. | ||
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+ | S1: -1 mm on pop1 down to -6 mm on pop5 [note S1 optics removed | ||
+ | S2: -0.8 mm to +0.3 mm\\ | ||
+ | E1: -0.1 mm to +1.8 mm\\ | ||
+ | E2: -0.7 mm to +0.9 mm\\ | ||
+ | W1: +1.4 mm to +1.7 mm\\ | ||
+ | W2: Reference Cart | ||
+ | |||
+ | {{: | ||
A new baseline solution was created on 2022Mar21 and has been in use since 2022Apr03. | A new baseline solution was created on 2022Mar21 and has been in use since 2022Apr03. |