CDS JOP 106 Sigmoid standard study

 

SIG_CONT  (1.3  hrs)  (context raster, few lines)
SIG_DG44  (1.3  hrs) (diagnostic raster, many lines)
SIG_FT44  (0.42 hrs x 10-11 = 4.18 - 4.6 hrs)  (fast raster, same lines as SIG_CONT)
SIG_DG44  (1.3  hrs)
          ==========
           8.08 - 8.5 hrs
          ==========


SIG_CONT - context raster

Duration       1.3 hours

Raster size    4' x 4'
slit           2"
exposure time  32 s

Windows:

520.66   : SiXII
533.62   : continuum
584.33   : HeI
592.53   : Fe XIX
619.16   : continuum
625.04   : MgX
629.62   : OV


SIG_DG44 - diagnostic raster
Duration       1.3 hour

Raster size    4' x 4'
slit           2"
exposure time  30 s

Windows:

320.6     : NiXVIII
325.15   : continuum
345.06   : Si X
347.45   : Si X
349.77   : Si X
356.05   : Si X
360.76   : FeXVI
364.47   : Fe XII
368.07   : Mg IX
375.37   : continuum

521.16    : SiXII
533.62    : continuum
554.4      : OIV (blend, wide)
562.92    : continuum
584.33    : HeI
592.89    : FeXIX
609.79    : MgX
619.16    : continuum
625.63    : MgX
629.62    : OV



SIG_FT44 - fast raster

 
Duration       25 mins

Raster size    4' x 4'
slit           2"
exposure time  15 s

Windows: same as in SIG_CONT



Notes:

The starting SIG_CONT should be a time-tagged study and all the subsequent studies should be appended to the previous. For both options the START pointing will be agreed between Sarah and the planner on a daily basis.  Thereafter, when the AR is near the meridian, all rasters should be positioned to allow for solar rotation compensation (ie using the 'pointings' option for the repeats of the fast raster SIG_FT44).  It's OK just to use the normal OPS pointing mode.  Pointing should remain fixed for the whole sequence for the runs taken later on the limb.