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chara:fringe_offsets [2019/04/10 19:34] gail_stargazer |
chara:fringe_offsets [2019/04/12 15:12] 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. | ||
- | Fringe offsets during 6T MIRCX observations on 2019 Apr 2+9. Theo installed a new baseline solution on 2019Feb20. | + | NOTE: Theo installed a new baseline solution on 2019Apr12. |
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+ | Fringe offsets during 6T MIRCX observations on 2019 Apr 2+9 (W2 as reference cart): | ||
S1: +3.0 mm to +4.4 mm\\ | S1: +3.0 mm to +4.4 mm\\ | ||
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W1: +6.3 mm to +8.9 mm\\ | W1: +6.3 mm to +8.9 mm\\ | ||
W2: Reference Cart\\ | W2: Reference Cart\\ | ||
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+ | NOTE: Theo installed a new baseline solution on 2019Feb20.\\ | ||
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Fringe offsets during 6T MIRCX observations after Phase 2 upgrades in 2018 September (W2 as reference cart): | Fringe offsets during 6T MIRCX observations after Phase 2 upgrades in 2018 September (W2 as reference cart): |