Cookbook for MIPS-2010: Tracking Flat (24micron) and IC (Ge:Ga) Measurements
Principal: Almudena Alonso
Deputy: Karl Gordon
Data Monkey(s):
Priority:
Downlink Priority: Normal
Analysis Time: Entire duration of IOC and SV
Last
Updated:
Objective
To track quality of Flatfields (24micron) and
Illumination Corrections (70, 160micron) taken during IOC and SV.
Description
Flatfields and IC will be obtained during every campaign
in IOC and SV as part of the calibration routines. This meta-task will
track the qualitiy of such flatfields and ICs taken with tasks: MIPS-914,
915, 916, 917, 918, 919, 305, 306, 307 and MIPS-313 (fine-scale 70 micron
ICs). Since flatfields and ICs will be observed using different regions
of the sky, this meta-task will also be used to track the quality of regions
used. For instance we will answer questions such as: do the chosen
regions of the sky produce enough S/N? Does the Region of sky saturate
at one or more wavelengths? Are there bright sources in FOV? etc.
Data Collected
Array Data Desired:
Data Reformatting Option:
Special Instructions:
Task Dependencies
-
CAID and title of Precedent Task #1 (or None)
-
etc.
Calibration Dependencies
Output and Deliverable Products
Flatfield/IC S/N (statistical quality) in terms of number of DCEs.
Comparison of quality of Flatfields/ICs obtained in photometry and
scan modes.
We will construct "super-flatfields and super-ICs" with high S/N. According
to simulations:
at 24microns 40-60DCEs or more DCEs (depending on zodi brightness)
will produce flatfields to better than 0.5%RMS
at 70micron 200DCEs or more will produce Ics to better than 0.5%
at 160microns we will need ~500DCEs to produce an IC to better than
1%
Data Analysis
-
Perform statistical analysis of flatfields/ICs such as, median, histogram,
standard deviation in terms of number of DCEs, and in terms of observation
mode (scan or photometry).
-
Flatfield observations of standard stars observed on different positions
across the array, and compare results.
Software Requirements
Actions Following Analysis
Failure Modes and Responses
Additional Notes