instructions for generating the drift file

[andrescarmona]

Hello, I miss in the README the instructions for generating the drift file

cheers,

Andres

[njcuk9999]

You are correct it isn't in there - it probably should be.

Maybe @eartigau can correct me but I think the only changes are:

1. Copy o_pp_e2dsff_C.fits files into the science directory (in an FP) directory for odometers that have a FP in their C fiber
2. Copy a_pp_e2dsff_C.fits files (FP_FP) into the science directory (in an FP)
3. Copy the FP_pos.fits file into the masks directory
4. Copy the Template_s1d_FP_sc1d_v_file_AB.fits into the templates directory
5. in the config.yaml
   • OBJECT_SCIENCE: FP
   • OBJECT_TEMPLATE: FP
   • INPUT_FILE: *e2dsff*C.fits

The FP_pos.fits file and Template_s1d_FP_sc1d_v_file_AB.fits file don't come from APERO so @eartigau will have to tell you how to make these or give you them I guess?

@eartigau can you also check my config.yaml parameters above

[andrescarmona]

Thanks Neil, we have the blaze AB, should we use the blaze_C ?

[andrescarmona]

I have from the previous release the FP_pos.fits file and Template_s1d_FP_sc1d_v_file_AB.fits. I was wondering whether we have a Template_s1d_FP_sc1d_v_file_C.fits ?

[njcuk9999]

So I think this was just Etienne being lazy - Template_s1d_FP_sc1d_v_file_AB.fits is actually Template_s1d_FP_sc1d_v_file_C.fits i.e. it is made of s1d FP from the C fibers (as far as I am aware) and not from the AB s1d (as there are far far fewer of these).

The reason it has this name is probably just that the "default" mask is defined as:
"Template_s1d_{OBJECT_TEMPLATE}_v_file_AB.fits`
and from your config you set:

# Set template object name
OBJECT_TEMPLATE: FP

therefore it "needs" the _AB.fits part - you could rename this FP template file and in the config file set:

# Set template file (None for default)
TEMPLATE_FILE: Template_s1d_FP_sc1d_v_file_C.fits

and the result would be the same.

@eartigau correct me if I am wrong about the s1d template coming from the C files not the AB.