Hi all, BICEP2 team meeting today (Tues) will be 2-3pm Pacific, so that Walt can join: Phone: 1-866-890-3820 (toll: 1-334-323-7229) Passcode:59702175 group discussion terminates at 1 hour, any wrap-up discussion < 90 min. Here is today's agenda: 1) Weekly report from Pole [ Steff ] - cryo - bicep.rc / data transfer - weather: cold and clear 2) Data quality / reduc czar report This week's report [ Angiola's email ] status of B2 2012 re-reduction [ Angiola/Randol ] status of cut definitions / reduc to-do Next week's czar? 3) General news and plans - new mailing list working? - SPIE papers posted...thanks. 4) Analysis pipeline news and plans see notes below - pipeline telecon Friday 10 Aug, 4 eastern, 3 central, 1 pacific 5) Other Postings 2012 Aug 1: Generating Synfast Maps with WMAP noise (JET) Updated Aug 3 2012 Aug 6: Sim 1205/1206 (CDS) 2012 Aug 6: Guide to running a simset (CDS) end of today's agenda. Notes from yesterday: ----------------------------------------------------------------------- 6 Aug 2012 B2 analysis/pipeline telecon On the line: John, Randol, Colin, Abby, Chris, Angiola, Jon B2 reduction (2:00-2:30 eastern) ----------------- status of Angiola's B2 2012 re-reduction [ Angiola / Randol / Chris to summarize ] disk space on bicepfs1 and panlfs - John to ask P Edmon again for quotes [done, quotes for 56 TB more are coming] status of thermal stability from Jon: - Jon is working on season-split (alternate days?) NTD jacks - will post updated outline of thermal stability project/paper for tomorrow Pipeline telecon (2:30-3:30 eastern) ---------------------- WMAP-like noise added to synfast input maps - Jamie Tolan not on, but briefly discussed his posting (further discussion Tue/Fri) - IDL-free, incl. matlab fits binary writer -- awesome. - noise levels (e.g. 67uK) defined for what area? - Should we consider more than W-band? Randol says yes, V-band is what he used. Abscal: Chris recently changed get_ukpervolt for B2 to 3071, from 3605. - We need clear abscals for each different B2 epoch! - Angiola to ask Justus for summary of work done on this, incl. vs. ell consistency Plan for closed loop sim/deproj tests: 1. input sim systematics @ best guess B2 level. What are these? a. relgain--we need closure from per-det abscal or per-pair T/dif leakage [ Justus / Walt?] http://bmode.caltech.edu/~spuder/analysis_logbook/analysis/20120117_wmapxco… b. diff pointing - beams_ab_cmb_bicep2_20100101.csv (per det fits from CMB, Walt) c. diff beam size - ? d. diff ellipticity - ? 2. generate timestreams using 3 sim algorithms: a1. linear systematic introduced using same template as deproj a2. best realistic model a3. best realistic model x2 a1 gives us a check to numerical accuracy (for deprojection on nopol input) and a clean test of E-to-B only (for deprojection on EnoB input). a2 or a3 is what we use by default; the ability to increase accuracy by 2x (e.g. doubling nsides, or the number of beamwidths used for interpolation) and verify negligible difference in coadded output maps assures us that sim timestreams are “close enough to reality”. 3. Deproj using linear basis constructed from derivatives. what is status of gen_templates? [Randol] width/ellipticity? strategy for interpolation? Randol's posting here serves as a model: http://bicep.caltech.edu/~spuder/analysis_logbook/analysis/20120404_diffpoi… We need to identify a limited set of tags to run this on, and run full signal (nopol, EnoB, BnoE) and scaled-noise sims. Each of the signal sims should be generated without systematics, and with systematics using the 3 sim algorithms. Each of these simsets should be mapped and processed to aps with and without deprojection. We do this first for relgain, diffpoint, and diffwidth separately, and then in combinations.