News about Science Data Product Forum

We would like to draw your attention about the existence of the Science Data Products internet forum which can be found at: http://www.eso.org/sci/data-processing/forum.html

ISAAC News

SW detector state Several dust grains and flakes are usually present on the detector. After the last cleaning there number has been reduced a lot and no special care with the OB offsets has to be taken at the moment. An up--to--date description can be found on the QC problem page.
Grating reproducibility: We have problems with the reproducibility of the grating position. If the central wavelength is changed, offsets up to 20 pixels are observed. This can be a problem when more then one setup is used in an OB and the telluric standard is taken afterwards after the grating was moved. For the time being, we recommend that OBs contain not more than two setups, and if they contain two setups, clearly mark this in the README file. In those cases, we will try to take a telluric before with the first setup and one afterwards with the second setup, so that no shifts occur between the science target and the telluric.

P84: In August 2009, ISAAC was moved to the Nasmyth A focus on UT3 (Melipal). Manuals and CfP for P84 have been updated accordingly.