69A0099A.html


Last update of this page: Thu Apr 24 17:45:05 2003
Last update of the USG file: Jul 17 09:42:47 2002

Major Instrument Modes: WFI with BVR filters

RA Range: 3h - 23.5h

Constraint set (Typical seeing, Transparency,Airmass, FLI, Moon distance): 0.8 2CLR 0.3 90


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


Special Remarks:
NO_REMARKS


 
 
This is a very simple observations to be made of 5 clusters of galaxies
all at redshift z~0.1 in 3 colours B,V and R.

The aim of the programme is to measure the gravitational weak shear on the
faint background galaxies lensed by the cluster. This measure will be
done using the R filter, and thus better seeing (<0.8") is required for this
imaging.

This program requested for Standard Calibrations in all BVR filters.

Critical Observing Condition!!!:
For the R-band imaging, good seeing is critical (<0.8")
The B and V observation will provide colour information to learn
more on the type/distance of the brighter/cluster galaxies, it can be done
with slightly worse seeing (<1.0").
 
 


Information about the progress of this run:

Run status page 69.A-0099A

README of this run:

69.A-0099A.README