Changes between Version 42 and Version 43 of Sa10Problems
- Timestamp:
- Dec 12, 2012, 11:24:51 AM (14 years ago)
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Sa10Problems
v42 v43 29 29 * i. Heather thinks we ought not to do skinny batches (?) 30 30 * ii. if it is -999 anyways is this a column we should keep? 31 * iii. WES: The idea of a projection cell (and skycell_id for stacks) has meaning, however for skycell_id at least there are issues for changing the current bogus implementation that no one has had time to look at. 31 32 * 2. varFlag = 0 32 33 * a. This is taken care of for future releases. It will be called qualityFlag, and is a subset of flags from infoFlag to help easily find good or bad objects … … 53 54 * a. EAM : '''STARGAL_SEP is the max of the extNsigma values from the exposures (P2s)''' 54 55 * A6: ?stackdetectid: what are they? Some are negative, some have single values (equal the the filterID), and some very positive. 55 * a. This has been fixed by Bill for future SAS 56 * a. This has been fixed by Bill for future SAS (still broken in SAS 11) 56 57 * A7: General magnitudes comments: (GENE?) 57 58 * 1. gMeanPSFMag - gStackPSFMag is bimodal: two peaks one at -0.03 and one at 0.12 (clearly separated) and not really the case for other bands … … 65 66 * 1. stackTypeId is always 1 66 67 * a. suspect this is the stack type from IPP 68 * WES: All of SAS is deep stacks, not nightly or high image quality. Hence they should all have the same value. Don't know where this is defined. 67 69 * 2. surveyID is always 0 68 70 * a. it should be because it is a 3pi like survey … … 76 78 * a. 77 79 * 7. kronrad: min value ~5 : is this expected? 78 * a. 80 * a. WES: psphot calculates a minimum value for the kron radius as some function of measured image quality. So a minimum value is expected. 79 81 * 8. psfchisq: 1k to 5k typically.... peak at 2.8k: what's the meaning of that number 80 82 * a. … … 93 95 * B4. projectionCellID == skycellID: is this normal or is this an artefact of SAS10 being small? 94 96 * a. This is a known issue and not to be resolved yet (why?) 97 * b. WES: A proposal was made to fix the stackMeta.skycellID but there are PSPS validation issues that must be worked out and no one has had the interest or time to take them on. 95 98 * B5. psflikelihood: why <0 for 10% of the stackdetections and -999 for ~25% of the stackdetections 96 99 * a. ?
