[Comm2011] Filters and MIDAS procedure

[John P. McFarland]

Hi Ewout,

I hope all is continuing to go well.  I have gone through the data to get
the specifics of the filters into the system.  I have settled on some names
and taken the specs from the PAE document VST-TRE-OCM-23100-3153.  It is
from April 2004, but it is the newest one I can find.  If you know of a
newer one or can find out about a newer one, please let me know.  It is not
urgent as I can redefine the filters at any time, but certainly 
desirable to
have the correct info on the first go.  Here are the specs I have:

FILT1 ID ->  AW name              CWL
---------------------------------------
'PS1'    -> 'OCAM_z_SDSS'        9100.0
'PS2'    -> 'OCAM_g_SDSS'        4775.0
'PS3'    -> 'OCAM_i_SDSS'        7630.0
'PS4'    -> 'OCAM_r_SDSS'        6230.0
'PS7'    -> 'OCAM_u_SDSS'        3550.0
'PS9'    -> 'OCAM_B_JOHN'        4562.5, # taken from WFI #842
'PS10'   -> 'OCAM_V_JOHN'        5395.6, # taken from WFI #843
'calib'  -> 'OCAM_u_g_r_i_SDSS'  3000.0

I have taken the header item 'HIERARCH ESO INS FILT1 ID' instead of
'HIERARCH ESO INS FILT1 NAME' as it is supposed to be unique.  I could take
the other one, but I expect conflicts there.  Please let me know if you see
any issues with this listing.  Thanks.

Also, can you give me the location of your MIDAS procedure and a brief
run-down of the MIDAS commands (e.g., image/load, etc.) I need to use it on
the focus data.  I would like to replicate your results on the tilt as soon
as possible.  Thanks.

Cheers,


-=John