We can use the list.* files collected in the acm_BigRed run to look at sets of raw images. Sometimes we want to view large numbers of images. Here are some ways to do this. The images can be marked and the resulting lists of marked and unmarked images can be used for various tasks.

% bigds9 list.BIAS 4 4            # To see all images in list.BIAS in 4x4 sets 
% bigds9 list.OPEN 311 329        # To see images for lines 311 to 329 in list.OPEN  

A different approach is to use the ACM table file made with each processed night. We make a plot of some common image properties, for example image number againsed mean image signal. The plot is made with an interactive cursor capability. The user can select any plotted point and immediately view (with ds9) the corresponding image. As with the example above, the images available for viewing are only the original raw acm images.

% pwd 
/home/sco/ACM_BIAS_STUDY/reds5/20190218

% ls 
ACM.images  BaseDir    data_strip.header  DR.fits     FITS.BaseNames  list.IMAGES  list.OPEN   Mean.BIAS
ACM.parlab  bias/      data_strip.out	  fbp.parlab  list.BIAS       LIST.IN	   LIST.OUT    out.qc
ACM.table   BIAS.DATA  Date		  fbp.table   LIST.HDFIX      list.NONE    local_red/  Stats.BIA

% point_selector ACM Thours mean N 

The next obvious question is "How do I view the processed images?". In the example below I use the list.OPEN file (the sky images) to make a list of the processed versions in each file. In the recipses below, we use the image_fullpath_list routine to take a list of (raw) acm images, and construct the fullpath names of the corresponding images in the ./local_red subdirectories. For instance, if we want to view the CCD-processed versions of the images, we want image paths for the FIXUP subdirectory. With the proper image list constructed, we can again use various methods of viewing the images.

METHOD 1: 
% cd /home/sco/ACM_BIAS_STUDY/reds5/20190218  
%image_fullpath_list list.OPEN FIXUP list.set1 N  
% bigds9 list.set1 16 16          

METHOD 2:
% cd /home/sco/ACM_BIAS_STUDY/reds5/20190216
%image_fullpath_list list.OPEN FIXUP list.set1 N  
%acm_revised_table list.set1 REV1 N  
% point_selector REV1 im Thours N  
At the end of this, the images you have viewed and elected to list will be in the local file 
named "Viewed.Images": 
% cat Viewed.Images  
/home/sco/ACM_BIAS_STUDY/reds5/20190218/local_red/FIXUP/20190218T095627.3_acm_sci.fits
/home/sco/ACM_BIAS_STUDY/reds5/20190218/local_red/FIXUP/20190218T041937.4_acm_sci.fits