| 20 | | Reference stack using data from 2010+2011, a balance of N input warps versus best seeing, excluding exposures with large background, low zeropoints, and large elongation. |
| 21 | | * label: MD01.refstack.20120803 |
| | 19 | |
| | 20 | == MD01.V3 Processing (chip->warp + refstack) == |
| | 21 | |
| | 22 | Exposure reprocessing was done for only a limited number (~150) of the best images from 2010+2011 to provide a balance of N input warps versus best seeing, excluding exposures with large background, low zeropoints and large elongation. Processing chip-warp and the refstack itself has the same label, data_group |
| | 23 | * label: MD01.refstack.20120803 --> ''once set as active refstack for diffims, stack label will change to MD01.refstack'', chip/cam/warp label will remain the same |
| 24 | | Test stack (reftest) sample also made again for skycell.055 with different number of input warps. |
| | 26 | |
| | 27 | Histograms of the FWHM major and minor and elongation from camera stage value (full exposure) for the sample of reprocessed exposures (red) and used for refstack.20120803 (top blue) and used for refstack.2011 (bottom blue). |
| | 28 | |
| | 29 | || [[Image(MD01.refstack.20120803-MD01.refstack.20120803.s055-MD01.refstack.20110820.s055.z.expfwhm.png,300px)]] || [[Image(MD01.refstack.20120803-MD01.refstack.20120803.s055-MD01.refstack.20110820.s055.z.expfwhm.png,300px)]] || |
| | 30 | || [[Image(MD01.refstack.20120803-MD01.refstack.20120803.s055-MD01.refstack.20110820.s055.z.expfwhm.png,300px)]] || [[Image(MD01.refstack.20120803-MD01.refstack.20120803.s055-MD01.refstack.20110820.s055.z.expfwhm.png,300px)]] || |
| | 31 | || [[Image(MD01.refstack.20120803-MD01.refstack.20120803.s055-MD01.refstack.20110820.s055.y.expfwhm.png,300px)]] || || |
| | 32 | |
| | 33 | |
| | 34 | Test stack (reftest) sample also made again for skycell.055 with different number of input warps. |
| 32 | | || [[Image(MD01.g.00000.expfwhm.png,300px)]] || [[Image(MD01.r.00000.expfwhm.png,300px)]] || |
| 33 | | || [[Image(MD01.i.00000.expfwhm.png,300px)]] || [[Image(MD01.z.00000.expfwhm.png,300px)]] || |
| 34 | | || [[Image(MD01.y.00000.expfwhm.png,300px)]] || Histograms of the FWHM major and minor from camera stage for reprocessed all exposures (red) and refstack.20120705 (top blue) and refstack.2011 (bottom blue). || |
| 35 | | |
| 36 | | Summary comparison table with the approximate FWHM (major) as the PSF FWHM from a center field skycell (V3=055) after running psphot on the stacks. Because the reftests were all run on the same date, the stack_id is important to note to separate by filter as well. |
| | 42 | Summary comparison table with the approximate FWHM (major) as the PSF FWHM from a center field skycell (V3=055) after running psphot on the stacks. |
| 41 | | || new ''MD01.refstack.20120803'' V3 || g || () || " || |
| 42 | | || MD01.reftest.20120803.c1f V3 () || g || () || " || |
| 43 | | || old MD01.refstack.2011 V3 || g || () || " || |
| | 47 | || new ''MD01.refstack.20120803'' || g || () || || |
| | 48 | || MD01.reftest.20120803.c1f || g || () || || |
| | 49 | || MD01.reftest.20120803.c1f || g || () || || |
| | 50 | || MD01.reftest.20120803.c1f49 || g || 36(10) || 5.11 || |
| | 51 | || MD01.reftest.20120803.c1f51 || g || 66(16) || 5.18 || |
| | 52 | || MD01.reftest.20120803.c1f53 || g || 95(29) || 4.91 || |
| | 53 | || MD01.reftest.20120803.c1f55 || g || 108(46) || 4.89 || |
| | 54 | || old MD01.refstack.20110820 || g || () || " || |
| 65 | | || [[Image(MD01.20120803_g_test.png,300px)]] || [[Image(MD01.20120803_i_test.png,300px)]] || |
| | 75 | == Problems == |
| | 76 | * generally edge skycells have issues, need better containment of those still. |
| | 77 | * some convolved stacks have strange PSF -- reprocessed using DEEP_STACK config with lighter input restrictions so may not have best FWHM, but 99% on the edge of field so won't anyways. |
| | 78 | * g: 024, 056 |
| | 79 | * r: 031 |
| | 80 | * i: --- |
| | 81 | * z: 013, 053, 062, 063 |
| | 82 | * y: |
| | 83 | * bad cell arc in primarily skycell.036 y-band from ota14, cell 31 seen in MD01 as well (MD10?) |
| | 84 | [[Image(MD02..png,300px)]] |
| | 85 | * poor/bad cell arc in primarily skycell.054 g-band (and less so in other filters) from ota43, cell 54? |
| | 86 | [[Image(MD02..png,300px)]] |
| 70 | | || [[Image(MD01.refstack.20110722.NULL.i.00000.stksummap.png,300px)]] || [[Image(MD01.refstack.20120705.NULL.g.00000.stksummap.png,300px)]] || [[Image(MD01.GR0.20120803.nightstack.20090629.NULL.g.00000.stksummap.png,300px)]] || |
| | 90 | == Refstack Summary == |
| | 91 | |
| | 92 | Refstacks run through the staticsky (full 5 filter mode with deteff measurements) and skycal stage on the unconvolved stacks: |
| | 93 | * label: MD01.refstack.20120803, MD01.refstack.20120803 |
| | 94 | * data_group: MD01.refstack.20120803.1x20120805, MD02.refstack.20120927.1x20120805.cal20120805 |
| | 95 | |
| | 96 | Source photometry psf_major,_minor maps (grizy): |
| | 97 | |
| | 98 | || [[Image(md01v2012skycal_cmf_g.txt_psfmap.png,300px)]] || [[Image(md01v2012skycal_cmf_r.txt_psfmap.png,300px)]] || [[Image(md01v2012skycal_cmf_i.txt_psfmap.png,300px)]] || [[Image(md01v2012skycal_cmf_z.txt_psfmap.png,300px)]] || [[Image(md01v2012skycal_cmf_y.txt_psfmap.png,300px)]] || |
| 75 | | == Refstack Comparisons == |
| | 103 | || [[Image(md01v2012skycal_cmf_g.txt_mag5sigmap.png,300px)]] || [[Image(md01v2012skycal_cmf_r.txt_mag5sigmap.png,300px)]] || [[Image(md01v2012skycal_cmf_i.txt_mag5sigmap.png,300px)]] || [[Image(md01v2012skycal_cmf_z.txt_mag5sigmap.png,300px)]] || [[Image(md01v2012skycal_cmf_y.txt_mag5sigmap.png,300px)]] || |
| | 104 | |
| | 105 | |
| | 106 | Detection efficiency magnitude @50% recovery (500 fakes, grizy): |
| | 107 | |
| | 108 | || [[Image(md01v2012skycal_cmf_g.txt_mag50gridmap.png,300px)]] || [[Image(md01v2012skycal_cmf_r.txt_mag50gridmap.png,300px)]] || [[Image(md01v2012skycal_cmf_i.txt_mag50gridmap.png,300px)]] || [[Image(md01v2012skycal_cmf_z.txt_mag50gridmap.png,300px)]] || [[Image(md01v2012skycal_cmf_y.txt_mag50gridmap.png,300px)]] || |
