EFOSC2 Technical / Calibration plan nights

Every suitable night...

Photometric nights

• Photometric standards (UBVRi - OBs mostly ready)

To Do List

Photometric nights

• SpecPhot stds for all grisms to remeasure efficiencies (on really good nights). All grisms still TBD in excellent conditions. VPHGs most important.
• SpecPhot stds with off-centre 5" slits to measure efficiencies All grisms still TBD. VPHGs most important.

Dark nights

• Polarimetric imaging - standards (polarised and unpolarised stars), follow at many telescope pointings in BVRi.
• Fringe maps? See fringing page to see what needs done.

Others

• Further investigation of the link between temperatures, pointing, adaptor movement and focus.
• Specphot stds with and without order sorting filters to find best way to remove 2nd order. See report
• Photometric standards - complete OBs. Find best pointings for each field to maximise number of stars in field, find suitable exposure times. SA92 - SA98 range still to be done (RA ~ 1 - 7 hrs)
• Image quality - test IQ with fans on adaptor to try and stabilise adaptor temperature. Pay attention to temperature change during offsets. Planned for 17 Nov 2008
• Southern standards - if windy but clear, can find suitable pointings etc for OBs for the -50 Dec Landolt Standards (Landolt, 2007, AJ 133, 2502)
• If nothing else, there is always the gallery to fill up