Astronomy 920 Commissioning of the Prime Focus Imaging Spectrograph Meeting 1 Organization; Intro Ken Nordsieck Sept 9, 2005 Ast 920 Meeting 1

Goals Learn of capabilities of Southern African Large Telescope and PFIS. Submit practice (or real) observing proposals. Become familiar with large telescope spectrograph design Learn IRAF mosaic CCD reduction Reduce and analyze data in support of commissioning: ~4 projects with ~2-member teams Sept 9, 2005 Ast 920 Meeting 1

Roster Here is the roster as it stands today Laura Beth Chomiuk Claudia Jane Cyganowski Kelley Michelle Hess Alex S. Hill Karen Tabetha Hole Amanda Ann Kepley Thomas John Nelson Louis Michael Nigra Kyle Brian Westfall Sept 9, 2005 Ast 920 Meeting 1

Materials PFIS website http://www.sal.wisc.edu/PFIS/index.html PFIS Observer’s Guide (Eric Burgh) http://www.sal.wisc.edu/~ebb/pfis/observer/ Instrument Model “PI Planning Tool” (Jeff Percival; Daniel Harbeck) http://www.sal.wisc.edu/PFIS/index.html SALT IRAF package (Me) on MADRAF, see Stephan Jansen Lab and Commissioning Data, to be downloaded as it comes For next week: access materials, form teams Meeting format: lecture for <40 min/ discuss for 15. Email inputs for discussion Sept 9, 2005 Ast 920 Meeting 1

Syllabus Intro (today) Instrument Model Project Definition Optics Detector Signal/ Noise Model Project Definition Reduction/ Analysis CCD Bias/ Crosstalk/ Gain Geometry Spectroscopy Sept 9, 2005 Ast 920 Meeting 1

SALT site at Sutherland SALT Overview SAAO HQ Cape Town SALT site at Sutherland 280 km ~ 175 miles Sept 9, 2005 Ast 920 Meeting 1

SALT Cutaway View Sept 9, 2005 Ast 920 Meeting 1

Getting a big telescope for cheap – Tracking with a fixed telescope HET/ SALT – Annulus centered overhead Arecibo – Circle overhead Sept 9, 2005 Ast 920 Meeting 1

Sky Coverage Observing period: 1 “Track”. +/- 6 deg = 50 min – 2.5 hrs Entirely queue scheduled Sept 9, 2005 Ast 920 Meeting 1

Payload Tracker “Payload” equipment Ports Spherical aberration corrector (“SAC”). 4 Mirrors. Defines entrance pupil. Calibration System Moving baffle Atmospheric Dispersion Corrector Ports Acquisition/ Imaging camera (“SALTICAM”) Fiber Feed Port Auxiliary Port PFIS (500 kg - 50% of weight budget) Sept 9, 2005 Ast 920 Meeting 1

First Light Sept 9, 2005 Ast 920 Meeting 1

PFIS Overview Major Prime Focus Instrument Multimode/ remote controlled Narrow-Band Imaging 3200 – 9000 Ang Multiobject (slitmask) grating spectroscopy 3200 – 9000 Ang Fabry-Perot spectroscopy 4300 – 9000 Ang All modes: polarimetry 3-CCD mosaic High-Speed rapid readout Schedule ship to Sutherland in a week install late Sept commission Oct - Nov Sept 9, 2005 Ast 920 Meeting 1

Optics Layout Sept 9, 2005 Ast 920 Meeting 1

Collimator Sept 9, 2005 Ast 920 Meeting 1

Camera Sept 9, 2005 Ast 920 Meeting 1

VPH Gratings Sept 9, 2005 Ast 920 Meeting 1