Difference: TeleConf10032016 (1 vs. 2)

• worked a lot on the photometric tools in astrobject: https://github.com/MickaelRigault/astrobject
• Example notebooks have been improved
• Can load and analyse collections of images
• SDSS catalogue is downloaded automatically
• Catalogues can be filtered for intersection all images
• Can run sep (Python SExtractor) on images and visualize the distribution of star using Voronoi Tessellation
• We should use local calibration for the SNe
• Peter: PTF published SN lightcurves are all locally calibrated
• Flat fields will improve the calibration but should also go to a crowded field occasionally and dither to test their flatness
• For the atmosphere we will need two bands (and SEDMachine), should be easy to prepare this for Maryland
• Marek: more importantly we need to show the astrobject calbration is better until Maryland
• Stockholm will use astrobject to check this (Uli/Seméli)
• Peter: for SN subtraction we should look at zoomed out image to 5' x 5'

Can we get a first order correction for Seméli's work (iPTF lcs)?

• calibrate around SN using PTFIDE stars (IPAC should have this)
• would need to ask Frank to run PTFIDE on the sorrounding stars
• Actually only need only to do this for reference image (could at least start with that)

Agenda:

• Calibration of (i)PTF data

Notes:

-- UlrichFeindt - 10 Mar 2016