69B0125B.html


Last update of this page: Thu Apr 24 17:45:05 2003
Last update of the USG file: Nov 6 15:15:23 2002

Major Instrument Modes: FORS2 - Pre Imaging

RA Range: 13:37

Constraint set (Typical seeing, Transparency,Airmass, FLI, Moon distance): 0.8 2CLR 2.0 1.0 60


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


Special Remarks:
NO_REMARKS


 
   
This is a pre-imaging program, aimed at finding Wolf-Rayet stars
in the galaxy M83, which is expected to have a large amount of them.
Due to the projected size of the galaxy, four FORS1 frames are required
to cover it all. The users call them fields A,B,C and D.
The OBs are divided in three sequences:

1) HeII ON / HeII OFF      
2) B_BESS short/ B_BESS long

3) Halpha ON / Halpha OFF 

The first two sequences are real pre-imaging, while sequence three
is pure imaging. 1) and 2) must be executed in March 2002, while 3)
can be executed any time between March and May.
The users say it is chritical for seq. 1) and 2) that ON/OFF, short/long
exposures are executed concurrently.

Note that since lots of OBs use the same f.chart, I did not insist with
the user in order to have the OB names written on the f.charts themselves.
                  
 
 


Information about the progress of this run:

Run status page 69.B-0125B

README of this run:

69.B-0125B.README