At the Telescope ...
Pointing RestrictionsThe telescope will not point closer than 3 degrees from zenith crossing and to zenith distances larger than 70 degrees.
Atmospheric RestrictionsWhen the wind speed is larger than 12m/s, the telescope should point at least 90 degrees away from wind direction. The telescope will be closed for wind speed larger than 18m/s.
The telescope will also be closed whenever the dew point is within 1.5 degrees of any telescope or instrument temperature. It will be opened again only after humidity gets back to the green range for at least 30 minutes.
Telescope will be closed during periods of complete or almost complete cloud coverage.
The decision about closing and pointing restrictions is made by the weather officer and the telescope operator, respectively.
Workstationswu#dhs for retrieving your OBs: the ftp transaction from your directory on the Linux PC (visas-account) and the import into P2PP on wu#dhs will be done by the support astronomer. Please do not create your own directories on wu#dhs machines.
The wgsoff# workstation is used for quick look data reduction, netscape, etc... This workstation does not interfere with the telescope nor instrument control, so it is the ONLY one where you can run your prefered software. On wgsoff#, you also have access to your raw data in the directory /data-ut#/raw/yyyy-mm-dd/. You should not create directories under /data-ut#/raw/ or /data-ut#/reduced/, but rather copy files to the home-directory and work on them there. You can copy your data also to your personal laptop, using the visasX machine provided for OB preparation as a proxy. Note a direct connection between your laptop and the control network is not possible due to firewall rules. You may use the ESO tool GASGANO on this workstation, which allows an easier handling of the raw and reduced data.
The instrument workstation is managed by the support astronomer. BOB is the interface between your p2pp-session and the instrument. A Real-Time Display (RTD) is available on this workstation, where you can quickly check the quality of your data.