GLIMPSE Galactic Legacy Infrared Mid-Plane Survey Extraordinaire A SIRTF Legacy Science Program

GLIMPSE Post-Pipeline Processing Progress Report
June 28, 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) - Generating Test Data, Database Development, Mosaicing
  
• Mike Wolff (0.375) - Database Development, OPUS Pipeline
  
• Mark Wolfire (0.375) - Zodiacal Light Intensity, Mosaicing, Web tools
  
• Brian Babler (0.167) - Photometry (DAOPHOT), Band & Position Merging
  
• Marilyn Meade (0.167) - Generating Test Data, Level A, B & C processes, OPUS Pipeline
  
• Total Commitment = 1.46 FTE

Post-Pipeline Flow Chart

• IRAC Science Data Pipeline(pdf file)
  
• GLIMPSE Post-Pipeline Flowchart(06/21/2001)(pdf file)
  

Post-Pipeline Progress Summary January -June 2001

Computer Purchases


• Sun Ultra 80 Workstation (shapley.astro.wisc.edu)
• Linux Workstation (Dell dual-processor 933 MHz) (oort.astro.wisc.edu)
• Linux Workstation (Dell dual-processor 1.7 GHz) (cecilia.astro.wisc.edu)

Database Development


• Test Data delivered to database group.
  
• Oracle software installed on shapley. Prototype of GLIMPSE Database has been created on shapley.
  
• Scripts written to allow data "reloading" to accomodate the ability to create database from "scratch."
  
• PERL scripts have been developed to allow retrievals and insertions from outside of Oracle command environment.
  
• Database Definitions: version 04/30/01
  
• Level A Process & Data Flow(06/11/2001)(pdf file)
  
• A Pixel's Life(06/11/2001)(pdf file)
  
• BCD Topology (06/26/01)(pdf file)
  

Pipeline Development


• Chose OPUS for Pipeline software, OPUS v2.2 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.
  
• GLIMPSE post-pipeline processing prototype is running on shapley using OPUS. It retrieves data to be processed, runs some level A, B and C processes. Fits headers are updated for level A and B processes and a GBSC is produced.
  

Test Data Generated


• IRAC simulated PSFs for each channel(06/24/2001)
  
• Test Data Images (color) using IRAC PSFs(06/24/2001)
  
• Test Data Images (b&w) using IRAC PSFs(06/24/2001)
  
  
• Test Data Images(WFPC2)(03/30/2001)
  
• IRAC Test Data Specifications(03/19/2001)
  

Level A - Validation


• Fortran programs were written to read in the suite of 8 test images per channel per exposure and perform checks for frame quality, AOR execution and SSC processing step completion. A new calibrated image file is created with information added to the fits header.

Level B - Basic Processing and Mask Propagation


• Fortran programs were written to read in the new calibrated image from level A processing, calculate the zodiacal light intensity given the channel, position & time of the observation, and add that information to the fits header. A new calibrated image file is created.
  
• Zodiacal light calculation plots(04/11/2001)

Level C - Processing for GLIMPSE Bright Source Catalog


• Photometry Progress Report(06/26/2001)
  

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

Accomplishments to Date

• Database Creation & Interaction
  
• IRAC Test Data Generated
  
• Zodiacal Light Intensity Calculation
  
• Automatic Photometry Processing
  
• Some Level A & B programs written
  
• Pipeline Processing of Test Data using OPUS
  

Goals for July-Oct 2001

• GUI tool for quicklook validation (display all 4 bands + resampled MSX 8 um image + 2MASS possibly)
  
• Develop more validation criteria & concepts
  
• Database design iterations
  
• PERL modules for database access
  
• OPUS - more processes; parallel processes, etc.
  
• More Test Data - using, IRAC team's simulator with our star fields; complete AOR & segment
  
• DAOPHOT - eliminate dependence on IRAF (modify I/O to read fits files. WCS calls to IRAF libraries); more testing; compare to S-extractor.
  
• Continue programming Level A,B,& C tasks and add to pipeline.
  

Tasks & Timeline

• GLIMPSE Data Processing Tasks & Projected Timeline (06/26/2001)
  
• GLIMPSE Project Timeline(pdf file)(02/22/01)
  

updated 06/27/2001