• SynopticChartReductions

Making MDI Magnetic Field Synoptic Charts

DESCRIPTION:

The magnetic and intensity Carrington Rotation synoptic charts are generated as soon as the definitive MDI data are processed for the period. They require 3 (or 4?) days of data after the nominal end of the CR.

INSTRUCTIONS: To make the magnetic field charts:

1. On your own machine (for speed), cd /synoptic/new_scripts/synop_qual.

   1. Run new_cr [CR] for the new Carrington Rotation. You can also run new_cr_noscale to highlight mostly one-pixel cosmic ray effects.
      • The magnetograms for the entire CR (plus a few days after) will pop up in DS9 for you to look at, one day at a time.
   2. To set the Cosmic Ray bits copy the file CR####.####-#### where the numbers become the CR, and the first and the last day. Indicate in the file the day and image numbers for which the bit must be set.

2. On sonar run the file CR####.####-####. Save it in the directory CR.BitsSet.Lists NoteOnCosmicRays

   1. If any other trouble bits need to be set, run 'udpate' in a sonar window. It will prompt you for the day and image numbers, and the quality bit(s) you want to set. Quality bit definitions are at http://soi.stanford.edu/production/QUALITY/.

3. On n02 in the directory /synoptic/new_scripts run do.synop #### #### where #### is the single Carrington rotation or a specification for the first and last rotations to be done in a loop.

   • do.synop determines the time parameters for make_magsynop.pl, which puts the new files in /synoptic/carrot/M/####
     • You can ignore the error messages from v2helio about not being able to read the overview.fits files.
     • Missing or skipped magnetograms also generate a notification
   • Each rotation takes roughly 15 minutes to run.

   • See MakeMagSynop for Instructions to manually run make_magsynop.pl

4. On your own machine Make the gif images for the fits files that were created by make_magsynop.pl.

   • Run /ssw/gen/setup/ssw_idl on your machine. Then

     • IDL> .run /synoptic/new_scripts/plot_synop

     • IDL> .run /synoptic/new_scripts/synop_gif_loop

   • To make each of the 0, 15 E/W, 30 E/W, 45 E/W, and 60 E/W gif files for both line of sight and radial, do

     • IDL> synop_gif_loop,####,####

   • this calls plot_synop for each set of parameters, e.g. plot_synop in='/synoptic/carrot/M/1909/synop_Ml_30W.1909.fits',/gif,/next,/carrot

     • IDL> exit

5. Check the images to make sure they look OK. You may need to set additional trouble bits if it looks like a bad image was used, and rerun make_magsynop.pl and remake the gif images. You can check the files online at

   • http://soi.stanford.edu/magnetic/index6.html

6. Update the file /synoptic/carrot/latest to reflect the latest CR that's available when you are satisfied with the charts.