GLIMPSE - Galactic Legacy Infrared Mid-Plane Survey Extraordinaire A SIRTF Legacy Program GLIMPSE Post-Pipeline Processing Progress Report April 13, 2001

Data Products - Deliverables

• GLIMPSE Bright Source Catalog (20 sigma above the noise)
• GLIMPSE Point Source Catalog (5 sigma above the noise)
• Mosaic Images
• Data Analysis Software
  Web Infrared Toolshed updated for IRAC and MIPS observations;
  wider range of model parameters; estimate of mid- and far- IR line intensities

Current People (Fractional Time Commitment)

• Barbara Whitney (0.375) - Database Development, Generating Test Data, Mosaicing
  
• Mike Wolff (0.375) - Database Development, Automation
  
• Mark Wolfire (0.375) - Zodiacal Light calculation, other bkgs, Web tools
  
• Brian Babler (0.167) - Photometry (DAOPHOT)
  
• Marilyn Meade (0.167) - Generating Test Data, Level A & B processes
  
• Alejandro Esquivel (0.067) - Level A & B processes
  
• Total Commitment = 1.52 FTE

Post-Pipeline Flow Chart

• IRAC Science Data Pipeline(pdf file)
  
• GLIMPSE Post-Pipeline Flowchart(pdf file)
  

Post-Pipeline Progress Summary Jan -Apr 2001

Computer Purchases


• Sun Ultra 80 Workstation (shapley.astro.wisc.edu)
• Linux Workstation (Dell dual-processor 933 MHz) (oort.astro.wisc.edu)

Database Development


• Database Definitions: version 20010215a(pdf file)
  
• Test Data delivered to database group.
  
• Prototype of GLIMPSE Database has been created on remote systems by the Milwaukee group. Snapshot will be installed on shapley within next month.
  
• Scripts written to allow data "reloading" to accomodate the ability to create database from "scratch."
  
• PERL scripts being developed to allow retrievals and insertions from outside of Oracle command environment.
  

Pipeline Software


• Chose OPUS for Pipeline software, OPUS v2.4 currently installed on shapley (new version, v3.2, is still in the works)
  
• Using SWIG packages to generate PERL modules to allow interface between database, OPUS, and Post-Pipeline modules. Essentially, this allows direct communciation between fortran routines and PERL & shell environments.
  

Test Data Generated


• IRAC Test Data Specifications(03/19/2001)
  
• Test Data Images(03/30/2001)
  
• Test Data Images (Revisit)(03/30/2001)
  

Level A - Validation


• Fortran programs written to do bad pixel counts, noise level checks using the suite of test images

Level B - Basic Processing and Mask Propagation


• Zodiacal light calculation (function of channel, position and time) - Mark Wolfire

Level C - Processing for GLIMPSE Bright Source Catalog


• DAOPHOT will most likely be the photometry package
• Can run DAOPHOT within IRAF using a script producing crowded-field star lists automatically.
  Stellar PSF is determined from the image data; coordinates derived from header info.
  Magnitudes are relative magnitudes so far.
  

Level D - Mosaic Images


• Initial research was done on mosaicing tools - Drizzle, IRAF, IDL

Level E - Processing for GLIMPSE Point Source Catalog


• Learning about DAOPHOT

Tasks & Timeline

• GLIMPSE Data Processing Tasks & Projected Timeline (04/10/2001)
  
• GLIMPSE Project Timeline(pdf file)(02/22/01)
  

Funding

• Currently have 1.52 FTEs in core group
• Preferred commitment level would be
  Whitney (1/3) + Wolff (1/3) + Wolfire (1/3) + Babler (1/3) + Meade (1/3) + Esquivel (1/8) = 1.8 FTE
  (+ Validation help - Chip, Christer, PDF ? )
  

updated 04/11/2001