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Changes between Version 63 and Version 64 of MD.GR0


Ignore:
Timestamp:
Sep 30, 2011, 2:35:34 PM (15 years ago)
Author:
Mark Huber
Comment:

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  • MD.GR0

    v63 v64  
    4444
    4545
    46 
    47 
    4846----
    4947
    5048= MD10.GR0 =
    5149
    52 Started for OC142 (July 15, 2011) with a new reference stack and full sample of reprocessed exposures as an initial reprocessing version.
     50Started for OC142 (July 15, 2011). Start with current statuswith a new reference stack and full sample of reprocessed exposures as an initial reprocessing version.
    5351
    5452 * z,y-band data processed prior to full Dark model improvements (higher background makes effect insignificant). gri-band processed after Dark model improvements.
    55 
    56  * same photometry reference catalog as before
    57 
    58 * ...
    59 
    60 * stack-stack diffims still using forced convolution of reference stack to input images
    61 
    62 * ...
    63 
    64 
    65  * center based on current observation pointing even though there are earlier data that has offset dithered observations that populate the 0X8-0X9 skycells. not as bad as MD07, but the revised reference stack may not provide for the outer skycells very well. Afterwards it was discovered the full extent of the previous observations was wrong, shown by these exposure plots with the MD10.V3 overlay and compared to a recent nightly stack set of exposures. This may need to be shifted in the next iteration.
    66 
    67 [[Image(MD10_g_smf.png,200px)]] [[Image(MD10_r_smf.png,200px)]] [[Image(MD10_i_smf.png,200px)]]
    68 [[Image(MD10_z_smf.png,200px)]] [[Image(MD10_y_smf.png,200px)]]
    69 
    70 [[Image(MD10ns_i_smf.png,200px)]]
     53 * same photometry reference catalog as MD have previously been using.
     54 *
     55 * stack-stack diffims still using forced convolution of reference stack to input images
     56
     57
     58MD10.V3 center shifted to the current observation pointing even though there are earlier data that has offset dithered observations that populate the 0X8-0X9 skycells. Not as bad as MD07, but the revised reference stack may not provide for the outer skycells very well. Afterwards it was discovered the full extent of the previous observations was wrong, shown by these exposure plots with the MD10.V3 overlay and compared to a recent nightly stack set of exposures. This may need to be shifted in the next iteration.
     59
     60[[Image(MD10_g_smf.png,150px)]] [[Image(MD10_r_smf.png,150px)]] [[Image(MD10_i_smf.png,150px)]]
     61[[Image(MD10_z_smf.png,150px)]] [[Image(MD10_y_smf.png,150px)]][[Image(MD10ns_i_smf.png,150px)]]
    7162
    7263
    7364== MD10.V3 reference stack ==
    7465
    75 Goal to maximize depth while minimizing the PSF FWHM.
     66Goal to maximize depth while minimizing the PSF FWHM with enough inputs (4 or more) to produce a stack for all skycells covered.
    7667
    7768Compared to the cumulative metrics at http://ipp0022.ifa.hawaii.edu/ps1sc/metrics/range_2010-05-13_current/
    7869
    79 Initially ran without reduction type and ran sample of best PSF and test deep stack (version 20110722gri, 20110715y, 20110718z) along with a test sample of a best PSF focused set MD10.psfrefstack.20110814) and a test best deep stack (just skycell.055, i-band, not distributed). After discovery of this error, re-ran as DEEP_STACK reduction type (version 20110821) and should be the one used.  (need to change in SSdiffs soon)
     70[[Image(MD10.g.00000.expfwhm_stkrefpsfv2.png,300px)]]
     71
     72[[Image(MD10.g.00000.expfwhmzptbgmjd_stkrefpsfv2.png,400px)]]
     73
     74[[Image(MD10.refstack.20110722.NULL.g.00000.stksummap.png,500px)]]
     75
     76
     77Initially the stack processing was ran without reduction type and ran sample of best PSF and test deep stack (version 20110722gri, 20110715y, 20110718z) along with a test sample of a best PSF focused set MD10.psfrefstack.20110814) and a test best deep stack (just skycell.055, i-band, not distributed). After discovery of this error, re-ran as DEEP_STACK reduction type (version 20110821) and should be the one used.  (need to change in SSdiffs soon)
    8078
    8179Side note: running w/o the DEEP_STACK and the PSF restrictions highlighted a strange behavior in the image rejection in ppStack. (add detail and modification description)
    … …  
    152150Using the MD10.refstack.20110722 and related set, histograms and mag-magerr plots for the reference stack, deeprefstack test, psfrefstack, typical nightly stack and V2 refstack are compared. The re-run MD10.refstack.20110821 will go a little deeper than the psfrefstack version.
    153151[[Image(MD10.20110814_i_testdeep.png,700px)]]
     152
    154153
    155154A representative skycell mapping of the new tessellation and good_fraction coverage. Nightly stacks will have similar, if not more, trouble with covering the corner edge skycells: 012, 017, 021, 028, 071, 078, 082, 087.