close window | last update: | contact
The calChecker monitor is developed and maintained by QC Garching.
It provides information about the calibration completeness and calibration quality. Find general information about the process here.
Dates with science data: highlighted in yellow, contain the SM and/or VM flag (total number of science files is displayed). Dates without science data: grey background, no SM/VM flag. 'report': raw data report (created by QC) 'NLT': night log from nightlog tool (requires login to user portal, password-protected) The last DATE column has a field on top, indicating the status of daytime calibrations (pending/ongoing/finished). This is relevant for the judgment of missing calibrations for that date: any MISS or NOK in case of "finished" is significant, while otherwise these calibrations are likely to still be in the calOBBuilder queue. Also, this field might be helpful to detect cases when a calibration queue is broken or has been interrupted. The row labelled Raw CAL displays links to the raw file displays (screenshots). Only the last 7 days have this link. Screenshots for older data are removed. In rare cases this line is labelled "n/a" ("not available"), when an instruments delivers only raw files in bintable format for which screenshots make no sense. The row labeled Product quality links to the QC-maintained product quality monitor (also called the "AB monitor" where AB stands for association block, the fundamental QC processing job). The product quality monitor shows the current status of data processing at QC Garching, including quality scores (which are also used on the Health Check monitor) and QC reports. The AB monitor reflects the calibration quality, while the calChecker reflects calibration completeness. Processing of the calibrations by QCG is done automatically and within the hour unless there are data delivery delays. The links labelled "Products quality" are marked products if the CALIBs for that date have already been certified by the QC group (to indicate to PSO that the product quality has been checked and potential issues have already been raised). Those nights which are not yet certified are marked products . An exclamation mark ! products marks nights with data coming in unsupported modes. These data have no products and need a visual check by Paranal daytime astronomers. The column "action required?" contains types of missing calibrations, and a link to the association rules used. The last Setup column lists the setup of missing calibrations. These two columns contain the necessary information about missing calibrations. The column "LOST?" contains those types of missing calibrations which are missing and cannot be acquired anymore (see below). They are distinguished from the calibration issues since strictly speaking it is pointless to take them e.g. a night later. Rather the affected science OBs need to be reviewed and perhaps be downgraded. A classical example for LOST calibrations are photometric STD data for imaging modes, which need to be taken the same night as the science data.
Data types are defined by mode and setup. Each science data type has one row, each date has one column. These two coordinates define a box which is evaluated by the tool as ok, nok or lost/miss:
Whenever a "missing" calibration is indicated, this is a reminder for obtaining them as soon as possible. Otherwise the corresponding SCIENCE observation may be lost (graded 'C' or 'D'). Old issues. It might happen that an unsolved calibration issue is older than the standard analysis window of 7 days. Classical example is a twilight flat that requires certain conditions which might not be available for a week. Then, the issue (NOK or MISS; not: LOST!) is carried over and displayed for as long as the configured range of the calibration memory. That range is displayed in the right bottom corner. The date with the carried over issue is listed at the left part of the result table, with a slightly different lokup. It remains visible until either the issue is solved or the maximum date range has expired.
Analysis notes. Whenever possible, the QC scientist or the Paranal astronomer makes an attempt to analyze a situation with NOK, MISS or LOST. The analysis result is then displayed underneath the result table, as a separate table labeled "Analysis notes". Detail pages. Click on any of the links in the result boxes, and see detailed results per DATE: every single SCIENCE file is listed with its OB ID, grade and comment, and the details of its associated calibrations, including the time delay and the calChecker flag. These detailed pages are intended to help with the analysis of problems. For instance, they tell you immediately that an OB has been graded C and therefore in principle does not need complete and valid calibrations. |