Study 000525:

ACRONYM: HPW021VEL120x512v3_b

As study HPW021_VEL_120x512v3 but with a modified line list. Extended window #24
(new width=56); to include O IV 279.933 . This line can become intense during
an impulsive heating event and ratios of this line to Mg V can be used to measure
abundances.

This study is designed for velocity studies in coronal holes. The
primary features of this study are: [1] full slit, [2] relatively deep
exposures (240s), and [3] extensive line list. The current thinking is
that the Fe VIII 185 and Si VII 275 lines are the best lines for
velocity calibration.

TARGET:           Quiet Sun
EXPOSURE TIME:    240s
RASTER:           Scanning
SLIT:             1"
STEP:		  2"
FOV:              120"x512" 
RASTER DURATION:  4h13m58s
VOLUME:           87 Mbits
RATE:             5.7 kbits/s
COMP:		  JPEG85   

Pointing:
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Adjust the pointing so that there is plenty of quiet Sun at the top OR
the bottom of the slit.

Instruction to planners:
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The planner should *not* put the feature of interest in the middle of
the slit. Using the bottom or top third of the slit will provide more
quiet Sun for velocity calibration.

Warning:
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2" steps are taken between exposures (1" Slit).