Study 000273:

Acronym: HH_QS_EW_SCAN_01

This study is intended to be run on the quiet sun in the equatorial region
for measurements of the average Doppler velocity  relative to the limb.
Five spacecraft pointings are required to achieve the goal.    

TARGET: Quiet Sun (equatorial)
EXPOSURE TIME: 120 sec
RASTER: Scanning
SLIT: 1"
STEP SIZE: 30"
FOV: EWxNS = 540" x 512"
RASTER DURATION: 40m54s
COMPRESSION: JPEG (Q=95)

2) ****** Five fixed pointings are required *******

    No tracking of differential rotation by spacecraft. 
    (X,Y) = (800",0"), (400", 0"), (0",0"), (-400",0"), (-800",0") 
    Spacecraft pointing: west is first, east is last. 

3) Use/Instruction to planners
    Observation at one pointing in a single spacecraft orbit.
    If possible, 2 raster scans at a single spacecraft pointing is 
    requested to see the details of orbital variation of the line
    center positions. One raster is possible also for eclipse phase
    (Apr 22 - Aug 21)  because it takes 41 min for a single raster. 
    Observations of 2 rasters at a single spacecraft pointing are 
    requested for non-eclipse phase (82 min/2 rasters).
    Coordination with other telescopes is not required. 

4) WARNING
   None