User Tools

Site Tools


chara:fringe_offsets

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
chara:fringe_offsets [2019/06/04 13:39]
gail_stargazer
chara:fringe_offsets [2019/08/13 07:10] (current)
gail_stargazer
Line 3: Line 3:
 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 in 2019 July-August (W2 as reference cart):
 +
 +S1: -1.3 mm to +0.2 mm\\
 +S2: -1.1 mm to +0.2 mm\\
 +E1: -2.0 mm to +0.5 mm\\
 +E2: -0.8 mm to +0.7 mm\\
 +W1: -0.6 mm to +0.2 mm\\
 +W2: Reference Cart
 +
 +Fringe offsets during 6T MIRCX observations in 2019 July (W2 as reference cart):
 +
 +S1: -0.8 mm to +0.2 mm\\
 +S2: -0.6 mm to +0.2 mm\\
 +E1: -1.1 mm to +0.5 mm\\
 +E2: -0.4 mm to +0.6 mm\\
 +W1: -0.2 mm to +0.2 mm\\
 +W2: Reference Cart
 +
 +NOTE: Theo installed a new baseline solution on 2019Jun26. This is based on Aaron'​s most recent file merged with new numbers for beam off sets and internal airpaths as measured by Judit and Theo in the lab.\\
 +\\
 Fringe offsets during 6T MIRCX observations on 2019 May 31 - June 2 (W2 as reference cart): Fringe offsets during 6T MIRCX observations on 2019 May 31 - June 2 (W2 as reference cart):
  
chara/fringe_offsets.1559669954.txt.gz ยท Last modified: 2019/06/04 13:39 by gail_stargazer