Health Check
monitor

The Health Check monitor provides information about the instrument health, as derived from the analysis of calibration data. Its intention is to provide quick quality feedback for the on-site QC process.

The Health Check process is fed by calibrations which measure key instrument components. They are taken regularly, in many cases daily. They are pipeline processed on Paranal. Their QC1 parameters are transferred to Garching and picked up by an automatic process run by the QC group. These parameters are plotted in a Health Check plot, in order to provide comparison to earlier taken values. After acquisition, new QC1 parameter values usually display on the plots within a few hours.

QC1 parameters determined by the Paranal pipelines are usually preliminary, due to various reasons. They may differ from the final values as determined by the Garching pipelines. As time continues, Paranal data points are eventually overwritten by the final Garching QC1 values.

The Health Check monitor offers access to all kinds of trending plots:

• the ones with a comparison of OPSLOG data and final QC1 values for the most important and regularly measured instrument components (marked by in the horizontal navigation bar),
• the ones without OPSLOG data (no OPSLOG data) (because no pipeline support existing),
• the ones which are only infrequently measured,
• the complete historical set (linked under history).

You can download the QC1 parameters, and link to the QC1 database. Most plots have a corresponding tutorial page linked as tutorial.

The Health Check Monitor is a joint effort of the Quality Control Group in Garching and of Paranal Science Operations. The process behind the Health Check Monitor is documented here.

Note: the delivery pattern of OPSLOG files to QC Garching has been upgraded. Now OPSLOG files are delivered and evaluated once per hour to QC Garching. Whenever a new entry is detected, the corresponding Health Check plot is updated. The health of the ftp process is monitored by a litte java application:

	ftp
	parser