From e704638440286d0a6cf9815a67e26f6f2e5278a8 Mon Sep 17 00:00:00 2001 From: marijana777 Date: Tue, 19 Oct 2021 22:48:30 -0700 Subject: [PATCH] Update customize_calcos.rst Small changes in the text. --- docs/customize_calcos.rst | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/docs/customize_calcos.rst b/docs/customize_calcos.rst index 674b2ac..3e79965 100644 --- a/docs/customize_calcos.rst +++ b/docs/customize_calcos.rst @@ -115,14 +115,14 @@ Follow the steps below for each segment (a, b) separately. 3) Customize and run CALCOS (1st Pass) ====================================== -(a) Original Notes ------------------- +(a) Original Notes (with small modification) +-------------------------------------------- - **cd folder_with_raw_data** - **For all FUV data set the following CALCOS calibration switches within pyraf:** - thedit *rawtag*.fits[0] FLATCORR 'OMIT' [flatfielding of Poisson data creates fractional counts, which are hard to interpret, COS flatfielding is approximate anyhow] + thedit *rawtag*.fits[0] FLATCORR 'OMIT' [flatfielding of Poisson data creates fractional counts, which are hard to interpret; also, COS flatfielding is approximate] thedit *rawtag*.fits[0] PHACORR 'OMIT' [initial setting, to be tuned later] @@ -132,10 +132,10 @@ Follow the steps below for each segment (a, b) separately. - **Set your calibration files wisely:** - thedit *rawtag*.fits[0] SPOTTAB 'N/A' [This calibration step only works on select datasets where hotspots have been identified. How and by whom? Better get rid of this nonsense.] + thedit *rawtag*.fits[0] SPOTTAB 'N/A' [This calibration step only works on select datasets where hotspots have been identified. We will not use it.] thedit *rawtag*.fits[0] GSAGTAB 'lref$x6l1439el_gsag.fits' [This will flag all gain sag holes as of 2013Jun20, so mainly geocoronal gain sag holes at the overused LP1. - Keeps the LP1 and LP2 traces usable that partly overlap with the dark calibration regions. All this is safe and tested! + Keeps the LP1 and LP2 traces usable that partly overlap with the dark calibration regions. All this is safe and tested. Download this file from https://hst-crds.stsci.edu.] thedit *rawtag*.fits[0] XTRACTAB 'lref$x6q17586l_1dx.fits' [This will work for LP2 data with CALCOS v2.21. In newer versions STScI renamed some columns, so they might not work with CALCOS v2.21.