Study 000311:

ACRONYM: prom_rast_small_v2

prom_rast_small_v2 consists in one small raster taking spectra at 2 positions
with 2" steps, using the 2" slit, with 25s exposures at each position. The
raster is repeated 30 times. The study runs in 28m35s, and is dedicated to
the study of prominence oscillations and their
variations with temperature. The window height in the Y direction is taken to
be 128 pixels, which is sufficient to cover the area occupied by our type of
target. The choice of the 2" slit allows us to cover more quickly a small
region with enough spatial and spectral resolution.
Ideally this would be a sit-n-stare study, but instead a narrow spatial scan
is made to co-align the two CCD images.
This study should be repeated as many times as possible over a continuous
period for increasing the range of oscillations periods to be detected.

We observe in 25 spectral windows to have a wide range of lines formed at
different temperatures, and allowing several density-sensitive line ratios
to be used for plasma diagnostics.

ACRONYM: prom_rast_small_v2
TARGET: filament / prominence
EXPOSURE TIME: 25 s
RASTER: scanning
SLIT: 2"
STEP SIZE: 2"
FOV: 4"x128"
RASTER REPEATS: 30
RASTER DURATION: 28m35s

2) Pointing
Any limp prominence or disk filament

3) Running
Coordinated with SUMER if SUMER is observing.
The study should be run as many times as possible over a continuous period of
time to detect a range of oscillation periods.

4) Warning

None