Study 000584:

ACRONYM:  HPW021VEL001x512v2

*** v2 corrects a bug in the previous version, which was adapted
from a 1" slit study and had all of the windows reset to the default of 32
pixels. This version uses a slightly modified line list to overcome this
problem. ***

A variation on the previous HPW021 studies. This time with the 2" slit,
SNS and a 40s exposure time.

This study is designed for velocity studies in and around active
regions during eclipse season. The primary features of this study are:
[1] full slit, [2] relatively deep exposures (40s), 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:           Active Region
EXPOSURE TIME:    40s
RASTER:           SNS
SLIT:             2"
FOV:              1"x512"
EXPOSURES:        80
RASTER DURATION:  58m37s
VOLUME:           122 Mbits
RATE:             35 kbits/s
COMPRESSION:      JPEG85

The primary lines for each data window are:

 1    180.40       32 #  Fe XI 180.401
 2    182.10       32 #  Ca XV 181.900, Fe XI 182.167, Fe X 182.310
 3    184.33       32 #  O VI 184.117, Fe X 184.536
 4    185.21       80 #  Fe VIII 185.213
      186.75       32 #  Fe VIII 186.601, Ca XIV 186.610, Fe XII 186.880
 5    188.40       48 #  Ar XIV 187.964, Fe XI 188.216, Fe XI 188.299, 
                         Fe IX 188.497, S XI 188.675
 6    192.47       56 #  Fe XXIV 192.040, Fe XII 192.394, Fe XI 192.813, 
                         Ca XVII 192.858, O V 192.906
 7    194.10       40 #  Fe X 193.715, Ca XIV 193.874, Ar XIV 194.396
 8    195.12       24 #  Fe XII 195.119, Fe XII 195.179
 9    197.86       24 #  Fe IX 197.862
10    201.05       24 #  Ca XV 200.972, Fe XIII 201.121
11    202.04       24 #  Fe XIII 202.044
12    203.83       24 #  Fe XII 203.720, Fe XIII 203.826
13    208.50       32 #  Ca XV 208.324, Ca XVI 208.604, Fe XIII 208.679, 
                         Ca XV 208.722
14    211.32 	     24 #  Fe XIV 211.316
15    255.00       32 #  Fe XVII 254.87, Fe XXIV 255.100
16    256.48       32 #  He II 256.317, Si X 256.366, S XIII 256.686
17    258.37       24 #  Si X 258.375
18    262.98       24 #  Fe XVI 262.984
19    264.30       72 #  Fe XXIII 263.760, S X 264.233, Fe XIV 264.787, 
                         Fe XVI 265.003
20    270.52       24 #  Mg VI 270.394, Fe XIV 270.519
21    275.40       24 #  Si VII 275.368, Fe XVII 275.54
22    276.30       40 #  Mg VII 276.153, Mg V 276.579
23    278.40       32 #  Mg VII 278.402, Si VII 278.445
24    280.39       56 #  Mg VII 280.39, O IV 279.933
25    284.16       24 #  Al IX 284.015, Fe XV 284.160

Pointing:
---------

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

Instructions to planners:
-------------------------

The planner should (not) put the feature of interest in the middle of
the slit. Using the bottom or top third will provide more quiet Sun
for velocity calibration.

Warning:
-------

3" steps are taken between exposures (sparse raster)