| Version 40 (modified by , 14 years ago) ( diff ) |
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Summary (Updated - AF 11/01/2012)
MOPS has reported some peculiar magnitudes in y-band MD data offsets and larger scatter compared to predictions of asteroid y-band magnitudes while the same comparison to 3PI photometry looks reasonable (both cases are photometry from the respective diffims). Also, have found photometry from Warp-Stack (WS) difference images for two sequential MD exposures unrealistically different by >0.5 mag.
Plot of average value for (observed - predicted) magnitudes per night for 3pi and MD detections in y-band.An offset in the MD data making objects ~0.4 mag brighter is seen.
Plot of average value for (observed - predicted) magnitudes per night for 3pi and MD detections in z-band. No offset is seen.
Example: MD10 sequential exposure pair, asteroid (12891) (Peter Vereš)
o6157g0218o o6157g0219o ra: 353.142622 ra: 353.142215 dec:-0.086658 dec: -0.086867
Chip/camera CAL_PSF_MAG photometry from the SMF catalogs below agree to what expected? yes, but can't be more exact because asteroid (12891) previously unstudied.
- o6157g0218o: 17.06
- o6157g0219o: 17.048
camera SMFs (from tag ipp-20120802):
IPP_IDET CAL_PSF_MAG CAL_PSF_MAG_SIG PSF_INST_MAG PSF_INST_MAG_SIG AP_MAG PSF_MAJOR PSF_QF_PERFECT FLAGS FLAGS2 rsep(")
2384872506.gpc1:MD10.nt:2012:08:18:o6157g0218o.512581:o6157g0218o.512581.cm.524588.smf XY41
00300 17.064 0.116 -12.201 0.011 -12.243 6.285 0.999 0x06200005 0x00000080 0.03
2384878611.gpc1:MD10.nt:2012:08:18:o6157g0219o.512582:o6157g0219o.512582.cm.524591.smf XY31
00353 17.048 0.120 -12.215 0.011 -12.221 6.292 0.999 0x06200005 0x00000080 0.02
WSdiff CMFs (from tag ipp-20120802):
IPP_IDET CAL_PSF_MAG CAL_PSF_MAG_SIG PSF_INST_MAG PSF_INST_MAG_SIG AP_MAG PSF_MAJOR PSF_QF_PERFECT FLAGS FLAGS2 DIFF_NRATIO_BAD rsep (")
---- o6157g0218o
2385003229.gpc1:MD10.nightlyscience:2012:08:18:MD10.V3:skycell.052:MD10.V3.skycell.052.WS.dif.272923.cmf
00180 17.159 0.000 -12.106 0.055 -12.059 6.915 0.999 0x02200001 0x00000881 0.59 0.00
---- o6157g0219o
2385006586.gpc1:MD10.nightlyscience:2012:08:18:MD10.V3:skycell.052:MD10.V3.skycell.052.WS.dif.272924.cmf
00143 16.543 0.000 -12.720 0.051 -12.072 10.512 0.999 0x02200001 0x00000081 0.61 0.00
Manually rerunning WSdiffims:
- conv direction correct? (default is conv refstack) Yes according the inputs from ppSub logs (conv refstack only, unconv better by ~1 pixel), and Kron R measure appears similar on resampled warp to SMF PSF size.
---- o6157g0218o Input FWHM: 9.713536 Reference FWHM: 4.809747 Kron Radii vs FWHMs 1: fwhm: 9.713536, kron 7.794752 Kron Radii vs FWHMs 2: fwhm: 4.809747, kron 4.897604 ---- o6157g0219o Input FWHM: 9.825516 Reference FWHM: 4.809747 Kron Radii vs FWHMs 1: fwhm: 9.825516, kron 7.951603 Kron Radii vs FWHMs 2: fwhm: 4.809747, kron 4.905538
- with more current ipp-20121026/trunk tag (conv + unconv refstack):
IPP_IDET CAL_PSF_MAG CAL_PSF_MAG_SIG PSF_INST_MAG PSF_INST_MAG_SIG AP_MAG PSF_MAJOR PSF_QF_PERFECT FLAGS FLAGS2 DIFF_NRATIO_BAD rsep --- o6157g0218o (conv and unconv) 00146 16.892 0.000 -12.373 0.055 -12.050 8.657 0.999 0x02200001 0x00000881 0.59 0.02 00197 16.774 0.000 -12.491 0.032 -12.050 8.802 0.999 0x02200001 0x00000081 0.59 0.01 --- o6157g0219o (conv and unconv) 00139 16.493 0.000 -12.770 0.052 -12.070 11.301 0.999 0x02200001 0x00000081 0.62 0.01 00176 16.465 0.000 -12.798 0.025 -12.020 11.069 0.999 0x02200001 0x00000081 0.60 0.01
- with older ipp-20110622 tag (conv only) that was active when photometry "looked better" last year (see example mag plot for TNO145452 below):
IPP_IDET CAL_PSF_MAG CAL_PSF_MAG_SIG PSF_INST_MAG PSF_INST_MAG_SIG AP_MAG PSF_MAJOR PSF_QF_PERFECT FLAGS FLAGS2 DIFF_NRATIO_BAD rsep --- o6157g0218o -- 00170 16.837 0.000 -12.428 0.053 -inf 5.545 0.999 0x02200001 0x00000081 0.59 0.11 --- o6157g0219o -- 00164 16.727 0.000 -12.536 0.051 -inf 5.761 0.999 0x02200001 0x00000081 0.61 0.09
Example: MD09, TNO145452 (Alan Fitzsimmons)
TNO 145452
- a bit faint but its' the best one I've found so far, as it stays in the field for a long long time.
- in MD09 where we can predict the y magnitude should be within 0.1 mag of ~19.3 for the below observations
- a bunch of y-band exposures in 2011 and 2012.
- columns are Exp ID, MJD, RA, Dec.
2011: o5756g0570o 55756.592040 333.326857 +0.597387 o5756g0571o 55756.595015 333.326815 +0.597377 o5756g0572o 55756.597969 333.326774 +0.597368 o5756g0573o 55756.600918 333.326733 +0.597359 o5756g0574o 55756.603875 333.326692 +0.597350 o5756g0576o 55756.609792 333.326609 +0.597332 o5756g0577o 55756.612748 333.326568 +0.597323 o5757g0356o 55757.496424 333.314491 +0.594541 o5757g0357o 55757.499384 333.314449 +0.594532 o5757g0358o 55757.502357 333.314407 +0.594522 o5757g0359o 55757.505335 333.314365 +0.594513 o5757g0360o 55757.508292 333.314323 +0.594503 o5757g0361o 55757.511248 333.314281 +0.594494 o5757g0362o 55757.514208 333.314239 +0.594484 o5757g0363o 55757.517163 333.314197 +0.594475 o5766g0299o 55766.477073 333.180973 +0.559502 o5784g0173o 55784.507883 332.868350 +0.454736 o5784g0174o 55784.510828 332.868295 +0.454715 o5784g0175o 55784.513776 332.868239 +0.454695 o5784g0176o 55784.516717 332.868184 +0.454674 o5784g0177o 55784.519667 332.868128 +0.454654 o5784g0178o 55784.522608 332.868073 +0.454633 o5784g0180o 55784.528498 332.867962 +0.454592 (ending at 08-11-2011) 2012: (starting 06-29-2012) o6107g0064o 56107.597172 334.910525 +0.746688 o6107g0065o 56107.600110 334.910498 +0.746686 o6107g0066o 56107.603062 334.910470 +0.746684 o6107g0067o 56107.606006 334.910442 +0.746681 o6107g0068o 56107.608993 334.910414 +0.746679 o6201g0056o 56201.242691 333.383584 +0.125386 o6201g0057o 56201.245657 333.383540 +0.125358 o6201g0058o 56201.248616 333.383497 +0.125330
This is the best example in the database because of the density of measurements and the known small amplitude of any lightcurve. In warp-warp diffs the slow motion will mean that 3PI and OSS measurements would be incorrect due to self-subtraction of the flux. But this should not only occur in MD fields as MOPS is being fed warp-stack measurements, and it would make the object fainter not brighter as seen. The variation in z-band and in other filters in 2012 is also puzzling.
Plot of observed magnitudes converted to V (top), and residual of magnitude (observed - predicted), in 2011 and 2012:
(Key: g=green, r=red,i=orange,z=purple,y=cyan)
camera SMFs: both the original nightly processing and MD.GR0 reprocessing
Filename IPP_IDET CAL_PSF_MAG CAL_PSF_MAG PSF_INST_MAG_SIG PSF_INST_MAG_SIG AP_MAG PSF_MAJOR PSF_QF_PERFECT FLAGS FLAGS2 rsep chipXY --> original V2 processing, synthcat allsmf_y/1091859485.gpc1:MD09.nt:2011:07:14:o5756g0570o.361984:o5756g0570o.361984.cm.233853.smf 01006 19.542 0.011 -9.877 0.053 -9.764 1.989 1.000 0x02200001 0x00000080 0.29 XY13 allsmf_y/1091858911.gpc1:MD09.nt:2011:07:14:o5756g0571o.361983:o5756g0571o.361983.cm.233852.smf 01542 19.308 0.008 -10.115 0.037 -10.443 1.995 1.000 0x06200005 0x00000080 0.31 XY14 allsmf_y/1091937189.gpc1:MD09.nt:2011:07:14:o5756g0572o.361986:o5756g0572o.361986.cm.233864.smf 02746 19.161 0.000 -10.269 0.039 -11.142 2.814 0.999 0x02204001 0x00000080 0.37 XY14 allsmf_y/1091890096.gpc1:MD09.nt:2011:07:14:o5756g0573o.361985:o5756g0573o.361985.cm.233854.smf 00831 19.368 0.000 -10.049 0.041 -10.092 1.774 0.998 0x02200001 0x00000080 0.26 XY15 allsmf_y/1091937005.gpc1:MD09.nt:2011:07:14:o5756g0574o.361988:o5756g0574o.361988.cm.233861.smf 00890 19.271 0.000 -10.136 0.033 -10.241 1.580 0.997 0x06200045 0x00000080 0.29 XY25 allsmf_y/1092057932.gpc1:MD09.nt:2011:07:14:o5756g0576o.361989:o5756g0576o.361989.cm.233862.smf 00741 19.232 0.000 -10.172 0.031 -10.289 1.493 0.998 0x06204007 0x00000080 0.32 XY36 allsmf_y/1091915330.gpc1:MD09.nt:2011:07:14:o5756g0577o.361991:o5756g0577o.361991.cm.233856.smf 00714 19.226 0.011 -10.188 0.035 -10.240 1.703 0.997 0x06200005 0x00000080 0.25 XY36 allsmf_y/1094681457.gpc1:MD09.nt:2011:07:15:o5757g0356o.362440:o5757g0356o.362440.cm.234103.smf 00709 19.299 0.014 -10.026 0.036 -10.095 1.699 0.997 0x06200005 0x00000080 0.25 XY26 allsmf_y/1094682661.gpc1:MD09.nt:2011:07:15:o5757g0357o.362439:o5757g0357o.362439.cm.234105.smf 00825 19.279 0.000 -10.032 0.033 -10.068 1.609 0.998 0x06200005 0x00000080 0.25 XY36 allsmf_y/1094757324.gpc1:MD09.nt:2011:07:15:o5757g0358o.362441:o5757g0358o.362441.cm.234104.smf 00783 19.371 0.000 -9.926 0.033 -9.896 1.503 0.997 0x06200045 0x00000080 0.29 XY36 allsmf_y/1096254860.gpc1:MD09.nt:2011:07:15:o5757g0359o.362442:o5757g0359o.362442.cm.234355.smf 00755 19.239 0.014 -10.060 0.026 -10.177 1.250 0.998 0x06204007 0x00000080 0.27 XY46 allsmf_y/1094702845.gpc1:MD09.nt:2011:07:15:o5757g0360o.362443:o5757g0360o.362443.cm.234106.smf 00760 19.292 0.011 -10.005 0.027 -10.044 1.323 0.998 0x06200045 0x00000080 0.16 XY56 allsmf_y/1094717069.gpc1:MD09.nt:2011:07:15:o5757g0361o.362444:o5757g0361o.362444.cm.234108.smf 00763 19.260 0.011 -10.041 0.025 -10.046 1.151 0.612 0x06200005 0x000000a0 0.23 XY55 allsmf_y/1094852307.gpc1:MD09.nt:2011:07:15:o5757g0362o.362445:o5757g0362o.362445.cm.234107.smf 00778 19.324 0.000 -9.986 0.027 -10.039 1.295 0.998 0x06200045 0x00000080 0.24 XY65 allsmf_y/1094715184.gpc1:MD09.nt:2011:07:15:o5757g0363o.362447:o5757g0363o.362447.cm.234110.smf 01119 19.273 0.000 -10.042 0.029 -9.927 1.429 0.943 0x02204001 0x00000080 0.32 XY65 allsmf_y/1128179911.gpc1:MD09.nt:2011:07:24:o5766g0299o.367502:o5766g0299o.367502.cm.239536.smf 00638 19.196 0.014 -9.318 0.057 -9.741 1.237 0.999 0x02204001 0x00000080 0.31 XY66 allsmf_y/1177140372.gpc1:MD09.nt:2011:08:11:o5784g0173o.374858:o5784g0173o.374858.cm.246059.smf 00709 19.202 0.011 -10.199 0.036 -10.238 2.102 0.998 0x06200005 0x00000080 0.29 XY02 allsmf_y/1177146799.gpc1:MD09.nt:2011:08:11:o5784g0174o.374859:o5784g0174o.374859.cm.246060.smf 00735 19.111 0.000 -10.271 0.031 -10.319 1.926 0.999 0x06200005 0x00000080 0.31 XY03 allsmf_y/1177195723.gpc1:MD09.nt:2011:08:11:o5784g0175o.374860:o5784g0175o.374860.cm.246063.smf 00727 19.223 0.008 -10.156 0.031 -10.161 1.718 0.998 0x06200005 0x00000080 0.35 XY04 allsmf_y/1177158950.gpc1:MD09.nt:2011:08:11:o5784g0176o.374861:o5784g0176o.374861.cm.246064.smf 00549 19.235 0.000 -10.129 0.029 -10.127 1.590 0.998 0x06200005 0x00000080 0.32 XY05 allsmf_y/1177171394.gpc1:MD09.nt:2011:08:11:o5784g0177o.374862:o5784g0177o.374862.cm.246065.smf 00597 19.251 0.000 -10.115 0.030 -10.088 1.569 0.998 0x06200045 0x00000080 0.32 XY05 allsmf_y/1177178772.gpc1:MD09.nt:2011:08:11:o5784g0178o.374863:o5784g0178o.374863.cm.246066.smf 00673 19.186 0.000 -10.180 0.029 -10.259 1.625 0.998 0x06200045 0x00000080 0.34 XY16 allsmf_y/1177199195.gpc1:MD09.nt:2011:08:11:o5784g0180o.374865:o5784g0180o.374865.cm.246068.smf 00698 19.323 0.016 -10.056 0.033 -9.877 1.721 0.906 0x06200045 0x00000080 0.29 XY27 --> MD.GR0 reprocessed with ubercal allsmf_y/2119523678.gpc1:MD09.GR0.20120601:o5756g0570o.361984:o5756g0570o.361984.cm.444636.smf 00927 19.403 0.035 -9.869 0.054 -9.556 3.071 0.998 0x02200001 0x00000000 0.17 XY13 allsmf_y/2119525130.gpc1:MD09.GR0.20120601:o5756g0571o.361983:o5756g0571o.361983.cm.444635.smf 01430 19.151 0.038 -10.121 0.042 -9.949 2.991 0.984 0x02200001 0x00000080 0.28 XY14 allsmf_y/2119527511.gpc1:MD09.GR0.20120601:o5756g0572o.361986:o5756g0572o.361986.cm.444638.smf 02385 19.554 0.038 -9.723 0.055 -9.786 4.134 0.997 0x02200001 0x00000000 0.28 XY14 allsmf_y/2119526275.gpc1:MD09.GR0.20120601:o5756g0573o.361985:o5756g0573o.361985.cm.444637.smf 00774 19.171 0.035 -10.097 0.039 -10.215 2.668 0.998 0x02200001 0x00000080 0.29 XY15 allsmf_y/2119528877.gpc1:MD09.GR0.20120601:o5756g0574o.361988:o5756g0574o.361988.cm.444640.smf 00838 19.121 0.035 -10.135 0.033 -10.212 2.317 0.997 0x06200005 0x00000080 0.31 XY25 allsmf_y/2119536441.gpc1:MD09.GR0.20120601:o5756g0576o.361989:o5756g0576o.361989.cm.444641.smf 00706 19.046 0.035 -10.207 0.031 -10.353 2.188 0.997 0x02204001 0x00000080 0.30 XY36 allsmf_y/2119539963.gpc1:MD09.GR0.20120601:o5756g0577o.361991:o5756g0577o.361991.cm.444642.smf 00680 19.073 0.034 -10.192 0.035 -10.233 2.500 0.997 0x06200005 0x00000080 0.25 XY36 allsmf_y/2119543361.gpc1:MD09.GR0.20120601:o5757g0356o.362440:o5757g0356o.362440.cm.444644.smf 00684 19.136 0.036 -10.037 0.036 -10.074 2.599 0.997 0x06200005 0x00000080 0.25 XY26 allsmf_y/2119541070.gpc1:MD09.GR0.20120601:o5757g0357o.362439:o5757g0357o.362439.cm.444643.smf 00771 19.105 0.037 -10.055 0.033 -10.072 2.382 0.998 0x06200005 0x00000080 0.23 XY36 allsmf_y/2119550643.gpc1:MD09.GR0.20120601:o5757g0358o.362441:o5757g0358o.362441.cm.444645.smf 00729 19.180 0.042 -9.962 0.032 -9.961 2.250 0.997 0x06200005 0x00000080 0.26 XY36 allsmf_y/2119551751.gpc1:MD09.GR0.20120601:o5757g0359o.362442:o5757g0359o.362442.cm.444646.smf 00763 19.093 0.045 -10.045 0.026 -10.117 1.838 0.998 0x06200005 0x00000080 0.26 XY46 allsmf_y/2119564253.gpc1:MD09.GR0.20120601:o5757g0360o.362443:o5757g0360o.362443.cm.444651.smf 00736 19.142 0.043 -9.994 0.027 -10.027 2.126 0.998 0x06200005 0x00000080 0.21 XY56 allsmf_y/2119554727.gpc1:MD09.GR0.20120601:o5757g0361o.362444:o5757g0361o.362444.cm.444648.smf 00721 19.105 0.041 -10.036 0.025 -10.037 1.673 0.609 0x06200005 0x000000a0 0.26 XY55 allsmf_y/2119560202.gpc1:MD09.GR0.20120601:o5757g0362o.362445:o5757g0362o.362445.cm.444649.smf 00734 19.136 0.040 -10.015 0.027 -10.064 1.949 0.998 0x06200045 0x00000080 0.23 XY65 allsmf_y/2119558442.gpc1:MD09.GR0.20120601:o5757g0363o.362447:o5757g0363o.362447.cm.444650.smf 00972 19.113 0.039 -10.046 0.029 -9.933 2.143 0.940 0x06200005 0x00000080 0.29 XY65 allsmf_y/2119575990.gpc1:MD09.GR0.20120601:o5766g0299o.367502:o5766g0299o.367502.cm.444658.smf 00609 19.022 0.059 -9.326 0.057 -9.720 1.860 0.999 0x02204001 0x00000000 0.25 XY66 allsmf_y/2119581769.gpc1:MD09.GR0.20120601:o5784g0173o.374858:o5784g0173o.374858.cm.444664.smf 00624 18.992 0.035 -10.256 0.036 -10.200 3.258 0.998 0x06200005 0x00000080 0.23 XY02 allsmf_y/2119581016.gpc1:MD09.GR0.20120601:o5784g0174o.374859:o5784g0174o.374859.cm.444665.smf 00684 18.953 0.033 -10.275 0.031 -10.298 2.889 0.999 0x06200005 0x00000080 0.25 XY03 allsmf_y/2119581238.gpc1:MD09.GR0.20120601:o5784g0175o.374860:o5784g0175o.374860.cm.444666.smf 00696 19.078 0.036 -10.146 0.031 -10.121 2.508 0.997 0x06200005 0x00000080 0.31 XY04 allsmf_y/2119587747.gpc1:MD09.GR0.20120601:o5784g0176o.374861:o5784g0176o.374861.cm.444667.smf 00518 19.059 0.035 -10.152 0.029 -10.159 2.365 0.997 0x06200005 0x00000080 0.25 XY05 allsmf_y/2119589883.gpc1:MD09.GR0.20120601:o5784g0177o.374862:o5784g0177o.374862.cm.444668.smf 00557 19.104 0.036 -10.106 0.029 -10.121 2.495 0.996 0x06200005 0x00000080 0.27 XY05 allsmf_y/2119590278.gpc1:MD09.GR0.20120601:o5784g0178o.374863:o5784g0178o.374863.cm.444669.smf 00624 19.065 0.034 -10.149 0.030 -10.197 2.473 0.998 0x06200005 0x00000080 0.27 XY16 allsmf_y/2119589969.gpc1:MD09.GR0.20120601:o5784g0180o.374865:o5784g0180o.374865.cm.444670.smf 00641 19.130 0.034 -10.096 0.032 -9.945 2.512 0.901 0x06200005 0x00000080 0.27 XY27 --> 2012 w/ ubercal allsmf_y/2152846158.gpc1:MD09.nt:2012:06:29:o6107g0064o.500972:o6107g0064o.500972.cm.452770.smf 00621 19.137 0.038 -10.103 0.037 -10.119 3.645 0.998 0x06200005 0x00000080 0.36 XY64 allsmf_y/2152850545.gpc1:MD09.nt:2012:06:29:o6107g0065o.500973:o6107g0065o.500973.cm.452771.smf 00751 19.263 0.040 -9.977 0.042 -9.584 3.641 0.998 0x02200001 0x00000080 0.30 XY64 allsmf_y/2152853156.gpc1:MD09.nt:2012:06:29:o6107g0066o.500974:o6107g0066o.500974.cm.452772.smf 00687 19.085 0.034 -10.147 0.033 -10.300 3.273 0.999 0x02204001 0x00000080 0.35 XY63 allsmf_y/2152855541.gpc1:MD09.nt:2012:06:29:o6107g0067o.500975:o6107g0067o.500975.cm.452773.smf 00802 19.239 0.035 -9.995 0.039 -9.818 3.353 0.999 0x06200045 0x00000080 0.33 XY63 allsmf_y/2152858750.gpc1:MD09.nt:2012:06:29:o6107g0068o.500976:o6107g0068o.500976.cm.452774.smf 00683 19.285 0.037 -9.948 0.043 -9.940 3.404 0.998 0x02200001 0x00000080 0.32 XY62 allsmf_y/2619124827.gpc1:MD09.nt:2012:10:01:o6201g0056o.524345:o6201g0056o.524345.cm.593200.smf 00705 19.116 0.043 -9.862 0.055 -9.606 2.500 0.997 0x02200001 0x00000000 0.24 XY55 allsmf_y/2619134453.gpc1:MD09.nt:2012:10:01:o6201g0057o.524346:o6201g0057o.524346.cm.593201.smf 00785 19.083 0.039 -10.065 0.038 -10.225 2.450 0.998 0x06200005 0x00000080 0.30 XY55 allsmf_y/2619131479.gpc1:MD09.nt:2012:10:01:o6201g0058o.524347:o6201g0058o.524347.cm.593203.smf 00808 19.272 0.037 -9.863 0.046 -9.778 2.578 0.997 0x02200001 0x00000080 0.32 XY55
Test diffims with o5766g0299o: MD.GR0 with 2 skycell overlap (056,057)
- original WSdiff, V2, synthcat (rerun with old tag give similar values) -- agrees with relative SMF w/in uncertainties
IPP_IDET CAL_PSF_MAG CAL_PSF_MAG_SIG PSF_INST_MAG PSF_INST_MAG_SIG AP_MAG PSF_MAJOR PSF_QF_PERFECT FLAGS FLAGS2 DIFF_NRATIO_BAD rsep 00430 19.262 0.000 -9.252 0.225 -9.487 1.596 0.997 0x02200001 0x00000081 0.70 0.29
- rerun WSdiff with recent tag ipp-20121026 but original V2 pixels with synthcat -- agrees with relative SMF w/in uncertainties and to original tag version.
IPP_IDET CAL_PSF_MAG CAL_PSF_MAG_SIG PSF_INST_MAG PSF_INST_MAG_SIG AP_MAG PSF_MAJOR PSF_QF_PERFECT FLAGS FLAGS2 DIFF_NRATIO_BAD rsep 00430 19.233 0.000 -9.282 0.220 -9.481 2.364 0.998 0x02200001 0x00000881 0.69 0.31
- WSdiff with MD.GR0 V3 and ubercal -- skycell.056 agrees with relative SMF w/in uncertainties but skycell.057 has a problem.
IPP_IDET CAL_PSF_MAG CAL_PSF_MAG_SIG PSF_INST_MAG PSF_INST_MAG_SIG AP_MAG PSF_MAJOR PSF_QF_PERFECT FLAGS FLAGS2 DIFF_NRATIO_BAD rsep --- skycell.056 00269 19.102 0.000 -9.245 0.115 -9.531 1.956 0.999 0x02200001 0x00000882 0.70 0.21 --- skycell.057 00234 18.799 0.000 -9.548 0.120 -9.658 2.679 0.998 0x02200001 0x00000882 0.71 0.21
- WSdiff for MD are typically with convolved refstack, run with unconvolved from MD.GR0 -- similar to the normal WSdiff convolved case with skycell.057 having a problem, but skycell.056 also >1-sig different from the SMF. Extra flags mean
IPP_IDET CAL_PSF_MAG CAL_PSF_MAG_SIG PSF_INST_MAG PSF_INST_MAG_SIG AP_MAG PSF_MAJOR PSF_QF_PERFECT FLAGS FLAGS2 DIFF_NRATIO_BAD rsep --- skycell.056 00129 19.240 0.000 -9.108 0.090 -9.515 1.897 0.999 0x06a04007 0x00000882 0.69 0.21 --- skycell.057 00115 18.881 0.000 -9.466 0.090 -9.635 2.420 0.999 0x02200001 0x00000882 0.71 0.21
- since slow moving TNO, is in SSdiff for comparison (unconv SSdiff is what SN/transients use and haven't noticed a problem) -- all agree with relative SMF w/in uncertainty and relative to each similar run.
IPP_IDET CAL_PSF_MAG CAL_PSF_MAG_SIG PSF_INST_MAG PSF_INST_MAG_SIG AP_MAG PSF_MAJOR PSF_QF_PERFECT FLAGS FLAGS2 DIFF_NRATIO_BAD rsep --- V2 original nightly stack SSdiff 00186 19.294 0.000 -13.914 0.059 -14.083 1.791 0.998 0x02200001 0x00000081 0.70 0.26 --- V2 rerun with recent tag version 00169 19.251 0.000 -13.957 0.059 -14.092 2.742 0.998 0x02200001 0x00000881 0.69 0.28 --- MD.GR0 V3 skycell.056 old and current tag version 00289 19.053 0.000 -14.155 0.071 -14.311 2.112 0.999 0x02200001 0x00000882 0.72 0.22 00241 19.069 0.000 -14.139 0.069 -14.307 2.130 0.999 0x02200001 0x00000882 0.69 0.21 --- MD.GR0 V3 skycell.057 old and current tag version 00292 19.101 0.000 -14.107 0.071 -14.309 1.380 0.999 0x02200001 0x00000082 0.72 0.21 00240 19.099 0.000 -14.109 0.069 -14.303 1.418 0.999 0x02200001 0x00000082 0.69 0.19
Example: MD01, MBA 131130 (Alan Fitzsimmons)
This is a nice example of the offset plus large scatter in y-band for a Main Belt Asteroid seen this year.
o6169g0184o 36.353429 -4.350323 o6169g0185o 36.353441 -4.350616 o6170g0586o 36.360948 -4.446235 o6170g0588o 36.360938 -4.446831 o6170g0590o 36.360927 -4.447427 o6170g0591o 36.360922 -4.447725 o6170g0593o 36.360911 -4.448320 o6171g0613o 36.362699 -4.549196 o6171g0614o 36.362676 -4.549499 o6171g0616o 36.362631 -4.550103 o6171g0617o 36.362608 -4.550406 o6171g0619o 36.362562 -4.551012 o6172g0677o 36.358383 -4.654112 o6172g0682o 36.358181 -4.655647 o6172g0683o 36.358141 -4.655956 o6172g0684o 36.358101 -4.656264
Plot of observed magnitudes converted to V (top), and residual of magnitude (observed - predicted) in 2012. The large gap in the data was caused by telescope shutdown due to rotator problems.
(Key: g=green, r=red,i=orange,z=purple,y=cyan)
Attachments (11)
-
145452.png
(144.7 KB
) - added by 14 years ago.
lightcurve of 145452 in MD09
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131130.png
(97.0 KB
) - added by 14 years ago.
131130 lightcurve in MD01
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y_ubercal.png
(55.7 KB
) - added by 14 years ago.
mean y-band (O-C)
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z_ubercal.png
(60.7 KB
) - added by 14 years ago.
Mean z-band (O-C)
- smfdiffcmfv0_y.png (54.3 KB ) - added by 13 years ago.
- smfdiffcmfv1b300_y.png (53.4 KB ) - added by 13 years ago.
- smfwrpcmf_y.png (53.4 KB ) - added by 13 years ago.
- warpdiffcmfv0_y.png (53.4 KB ) - added by 13 years ago.
- smfdiffcmflstori_PS1-12sn_md05s031i.png (51.5 KB ) - added by 13 years ago.
- smfdiffcmflstv0_PS1-12sn_md05s031i.png (52.4 KB ) - added by 13 years ago.
- smfdiffcmflstv1b300_PS1-12sn_md05s031i.png (52.5 KB ) - added by 13 years ago.
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