67A0146A.html

Last update of this page: Thu Apr 24 17:45:02 2003
Last update of the USG file: Jul 17 09:42:29 2002

Major Instrument Modes: UVES Dic1_390+564, Dic2_437+860

RA Range: 12h - 01h

Constraint set (Typical seeing, Transparency,Airmass, FLI, Moon distance): 1.2, 3THN, 1.5, 0.7, 90

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

Special Remarks:

 
 
  High resolution spectroscopic study of elemental abundances in a 
sample of DLA absorbers, at the high end of the HI column density 
distribution, with the aim of understanding whether the mean cosmic 
metallicity of the universe evolves with redshift. 

  No special scheduling requirement, except one: should the program 
not be completed, strong preference should be given to complete both 
dichroic settings for each target (before moving to new object). Grey 
time was asked in Phase1, but FLI constraint is now relaxed to 0.7. 

==> Be aware of User Comments specified in OBs: Moon Distance < 90 
can be tolerated if FLI<0.7.

Information about the progress of this run:

Run status page 67.A-0146A

README of this run:

67.A-0146A.README