Last update of this page: Thu Jan 29 15:41:36 2009
Run State: COMPLETED
USD review status:
O.K.!
| Pre-Imaging? | Special-Calibration? | Time-Critical? | ToO/GTO/Large program? | Carry-Over? |
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Special Remarks:
PI has submitted both imaging and PRE-imaging OBs. Special calibration required: see MTS abstract
Abstract for MTS:
Imaging and identification of very distant (z>1) X-ray luminous clusters of galaxies via deep imaging in R and Z.
A waiver request was granted to allow for two exposures with different filters in one OB. 079.A-0634A.01.WAV
Special calibrations: Calibration for the R_SPECIAL filter can be obtained as part of the standard calibration program. We are aware that z_Gunn standard star observations are not part of the Standard Calibration plan, however in a previous P78 programme we agreed with USD (Nando Patat) that these photometric standard observations should not be charged on this run, provided that they are executed in twilight .
Every night that one or more science OBs with the z-filter are executed in Photometric conditions (each OB is a differen target), one photometric standard should be observed in Z_Gunn from the provided Sloan standard (Smith et al. 2002) provided (OBs called CAL*).
The exposure time of 1 sec for these standards stars (all fainter than 11.5 in R) should be adequate to get >~10000 ADU, but please double check the peak value to make sure is not saturated.
The z-standard calibration observations should be performed during twighlight ('free of charge'), using the OBs with prefix 'TWI'. Again, please observe at least one 'twighlight z-standard' for every night science targets are observed.
(This procedure was suggested by Ferdinando Patat for the P78 observations.)
README of this run:
Web version of approved README readme_79063400.html