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--- chara:fringe_offsets [2021/06/02 19:38]
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+++ chara:fringe_offsets [2021/08/06 21:12]
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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.
-Fringe offsets during 6T MIRCX observations in Mar-Apr 2021 (W2 as reference cart): The current fringe offsets change rapidly depending on hour angle. See plot of cart offset vs. hour angle.
+A new baseline solution was created on July 29, 2021. The fringe offsets continue to change rapidly over time depending on hour angle. See {{:chara:files:baseline_offsets_2021jul_aug.pdf|plot of cart offset vs. hour angle}}. Fringe offsets during 6T MIRCX observations on 2021 Jul 29, Aug, 02, Aug 06 (W2 as reference cart):
+S1: -2.5 mm to +1.0 mm\\
+S2: -2.0 mm to +0.6 mm\\
+E1: -1.8 mm to +0.9 mm\\
+E2: +1.5 mm to +1.0 mm\\
+W1: -1.5 mm to +0.8 mm\\
+W2: Reference Cart
+Fringe offsets during 6T MIRCX observations in 2021 Mar-Apr (W2 as reference cart): For the current baseline solution, the fringe offsets change rapidly depending on hour angle. See {{:chara:files:baseline_offsets_2021mar_apr.pdf|plot of cart offset vs. hour angle}}.
 S1: -2.0 mm to +2.0 mm\\

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