1. FMOS Observations and Data 14 January 2004 FMOS Science Workshop

2. Introduction Data summary Observation modes Observation types Data reduction processes

3. Data Overview Two Hawaii 2K arrays, each identical format 120mm slit length, 200 fibres each 280µm diameter 4.7 spatial pixel spectrum 10 pixel spacing

4. Observation Modes Standard star observations Stare mode Beam switching

5. Observation Data Types Normal (stare and beam switch) Standard star observations Calibration arcs Flat Throughput mapping Slit dither

6. Detector calibration ( Individual data frame preprocessing) Dark current Flatfielding Hot/Dead pixels Cosmic rays

7. Flat field calibration Spectrum location (tramline mapping) Scattered light measurment

8. Arc Calibration Wavelength PSF?

9. Throughput mapping Must be done on sky (with fibres in correct configuration due to spine tilt effects) Sky lines missing (OH suppression)

10. Data reduction Data extraction Frame combination Flux calibration A,B beamswitch addition Header information

11. Post Reduction Analysis Redshift Spectral parameters (EW,σ, F)

12. Implementation? Data analysis during observation Final data reduction Automated pipeline Semi-automated pipeline (e.g. 2dFDR) Independent tasks