ESO Archive Frequently Asked Questions

Instrument Description and Documentation

• How do I find out what are the characteristics of the filters ESO uses?

Please refer to the Exposure Time Calculator service.

Otherwise, please check the individual user manuals for Paranal and La Silla instruments.

• How do I get the photometric quality of a given night?

The information about photometric zeropoints is available at the DFO Quality Control pages.
Please select on the Trending & QC1 pull down menu the instrument you are interested in.