RA Range: 16:32

Constraint set (Typical seeing, Transparency,Airmass, FLI, Moon distance): 1.2 2CLR 2.0 0.0 50

Pre-imaging run?	No!	Chilean run?	No!	Special calibrations?	No!
Time critical?	No!	ToO?	No!	Carry-over run?	No!

 
   
 
This is a run which includes both LSS (600B+600R) and Imaging (U,B,R) 
of the cooling flow galaxy Abell 2204. The project is meant to obtain
accurate line ratios of the typical HII regions in order to explore
the excitation mechanism and to detect dust.
The imaging part will be used to search for star-forming regions.

The spectroscopy OBs use blind offsets with respect to a reference star,
and take two exposures per grism, with telescope 2 offsets along the
slit.
The imaging part (1 OB) is done using an occulting mask in order to avoid
strong saturation effects from a very bright star in the field. The same OB 
includes three exposure, each of them using a different filter (U,B,R)


Note that the target, due to its coordinates, does not get an airmass
lower than 1.5.
Note also that the reference star is faint and maybe not very well isolated.
The field is indeed rather poor and the next closest good star is 3
arcmin away from the target. If during execution it is found that the 
indicated star is not good enough, stop execution and report back to USG.



 

Run status page 69.A-0444F

README of this run:

69.A-0444F.README