wiki:HetProcedures/TO/pvtwilight

Version 9 (modified by justenp, 5 years ago) (diff)

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Procedure for Blue Sky PV Images

  • Point structure and dome to north (Azimuth: 0)
  • Set tracker to center preset position
  • Make sure SAMS is on and making corrections
  • Open dome shutter, Louvers should be left closed
  • Retract ACAM mirror if deployed, then deploy PV/CWFS mirror, set CWFS/PV position to PV
  • Uncheck the "Store Images" box on PV camera (So that you aren't saving a bunch of images while you are setting exposure time)
  • Start Pipeline and images on PV camera
  • Adjust exposure time till the "Blue" PV image flux for the mirror segments is approximately 190 counts
  • Turn PV pipeline off, leave start images on and run command '~/justen/pvtwilightOnSph' in a terminal on jove
  • Watch "Blue" images as they come out to see what the flux is, if the flux drops below 150 or hits 255 adjust exposure while tracker is moving to the next position

NOTE: If any image has flux of 255 and is over exposed or is below 150 and underexposed, another set will need to be taken

On sphere locations for HS PV test

  • mountTest -F
  • h for help
  • q to quit
  • Enter in a # between 1 - 97 to go to different points on sphere