Simulation Strategy Session Afternoon 20 March Image Library: Send candidate images by 27 March to Min. Selection to occur by 3 April. Images should be large 1024 x 1024, with good dynamic range and spatial frequency range. They will need to support imaging at 5-6 pixels per resolution element over 200 resolution elements at least. Create uv sample visibilities No errors to be added to data at this point; that evaluation to occur later. Exception: Use median tau (???number???) for weights. For speed, use FFT then interpolate. Output to UVFITS The antenna will be assumed to employ a 12db taper. Use 5 degree mask. Imaging and deconvolution at 345 Ghz frequency Pick 5 resolutions (Yun, ALMA Project Book Chapter 15) 'A' 0.05" 'C' 0.22" 'E' 0.98" Compact array: simulate snapshots only; long integrations less important (?) Intermediate configuration(s): Scale image to ~200 beams Snapshots and synthesis +/- 2 hrs of meridian for '1.5' km array. Snapshots and synthesis +/- 2 hrs of meridian for '3' km array, intially. Declination range: -23, -70 and +25 degrees Arrays should accommodate e.g. a 1.1 NS stretch. Multi-configurations may be simulated. Final deconvolved image Use Maximum Entropy and CLEAN, and whatever else your Pandora's box contains. Adrian will arrange with Steven Heddle (?) To have a 'black box' to run these Imaging simulations all these ways in a parallel fashion. After an initial run in AIPS simulations, with the limited errors discussed above, simulations will be run in AIPS++ with the more robust error treatment which Mark has designed. This should occur by August 2000. Judgment Day: rms difference maps max, min in maps Max fractional difference FT difference image to find where artifacts arise Compute MODEL/Difference maps for 'image fidelity'.