Execution:
Do an implot on one
of the flat-field frames, and check that the
overscan ("biassec") and trim ("trimsec") sections are right, as well
as the image
sections for computing statistics ("statsec") and flat normalization.
"ccd40" will use this
information to:
1) process the bias images
(you will have a chance to look at the overscan fits, Figure1 ),
combine the individual frames, and display the resulting image "Zero"
(Figure 2);
Figure
1
Figure 2
2) process the dome and sky flats separately according to the "filter"
image
keyword, combine them, and display the resulting images Sflat_?.fits
and Dflat_?.fits (here you have the choice of selecting either the
dome flat, sky flat, or an illumination flat constructed with the dome
and sky flats); and
3) process the direct images found in the working directory through
[OTZF].
If everything goes well, you should get a listing of the processed
images
with [OTZF] next to each spectral image name.
The task will output relevant information to the "ccdlog" file.
A copy of the raw images will be kept in the same directory, adding a
"B" in front of the image name (Bccd001.fits, for example). If
something goes wrong during the
reduction
process, you can recover your original images from those files. |
