1. 1 Preliminary Design Review Tucson, Arizona August 29 th – September 2 nd, 2011 Data Management: Input Data Prepared by: Simon Krughoff ImSim Project: University of Washington LSST Preliminary Design Review August 29-September 2, 2011

2. 2 Preliminary Design Review Tucson, Arizona August 29 th – September 2 nd, 2011 Input Data Summary –Simulated Imagery –Simulated operations –Simulated time variable sky –Atmosphere/Optics model –CFHT Imagery –Camera design –Focal plane layout –Electronic properties –Calibration Products

3. 3 Preliminary Design Review Tucson, Arizona August 29 th – September 2 nd, 2011 Input Data: Simulated Imagery − Simulated Observations – 10 years – ~3 Million observations – Historical weather and downtime – Filter and location chosen to satisfy science programs – Realistic slew, exposure, and shutter times

4. 4 Preliminary Design Review Tucson, Arizona August 29 th – September 2 nd, 2011 Input Data: Simulated Imagery − Simulated Sky – Galactic structure model from Juric et al. (2008), Amores & Lepine (2005), Schlegel, Finkbeiner, & Davis (1998) – Solar system model from Grav et al. (2010) – Extragalactic positions from White with semi-analytic properties from De Lucia – Variable AGN/QSOs, Cepheids, RRLy, eclipsing binaries, AM CVn, microlensing events, M-dwarf flare

5. 5 Preliminary Design Review Tucson, Arizona August 29 th – September 2 nd, 2011 Input Data: Simulated Imagery − Atmosphere/Optics Model – 6 moving screen model normalized to seeing from OpSim with historical wind velocity – Kolmogorov spectrum cloud model informed by historical cloud coverage data – Full optical system model

6. 6 Preliminary Design Review Tucson, Arizona August 29 th – September 2 nd, 2011 Input Data: Simulated Imagery

7. 7 Preliminary Design Review Tucson, Arizona August 29 th – September 2 nd, 2011 CFHT Data − ~19,000 MegaCam images – 23 May 2003 to 16 Feb 2008 − 36 two amp CCDs in rectangular grid − 1deg x 1deg fov − u*,g,r,i,z filters (note the u* is broader than the LSST u) − Bias Frames − Flat Frames − Fringe Frames for i and z images.

8. 8 Preliminary Design Review Tucson, Arizona August 29 th – September 2 nd, 2011 Camera and Electronics Model − Focal plane layout – 189 imaging chips: 2000x2072 pix – 4 wavefront sensors – 21 3x3 rafts − Electronic design – 8x2 Amps per chip – 509x1000 pix per amp

9. 9 Preliminary Design Review Tucson, Arizona August 29 th – September 2 nd, 2011 Calibration Products − 10 realizations with 2 exposures per realization − Reduced using DM stack to produce master calibration frames. − Bias frames – zero length exposures − Dark frames – 180 sec exposures with shutter closed − Per filter flats – Analytic fit to vignetting function sampled to place photons.