Possible changes to 1st/2nd half jack

List overview All Threads
Download

newer

older

Re: [Bicep2-list] [keckarray]...

additional jacks (and exclusions?)

bullock＠physics.umn.edu

17 Jul 2013 17 Jul '13

11:23 a.m.

Hello Everyone, In this post: http://bicep.caltech.edu/~spuder/analysis_logbook/analysis/20130514_signfli… we see that the real BB bandpowers come down when going from 2yr to 3yr. However, the 1st/2nd half jack passes, which seemed strange. One thought for why this jack passes is that an even-splitting on tags puts less weight (25%?) in the 1st half. This can be seen in Chris's post: http://bicep.caltech.edu/~spuder/analysis_logbook/analysis/20130621_B23yr_w… I was tasked with seeing if the 1st/2nd half jack fails when switching to an even weight splitting, which is 20120212 for B2. But maybe this is not the best thing to do, as it could lead to biasing. So, without looking at the results, do we want to change this jack for our upcoming simset to have an even weight split (or even putting 2010/2011 in the first half and 2012 in the second)? -Eric

Show replies by date

John Kovac

17 Jul 17 Jul

3:38 p.m.

Hi Eric, I'm in favor of redefining this standard jack as an equal-weight split, or perhaps for simplicity as 2010+11 vs 2012. John On 7/17/13 11:23 AM, bullock(a)physics.umn.edu wrote:

...

Stefan Fliescher

3:54 p.m.

Hi Eric, so what is the date for Bicep2? what do we do for Keck? Just keep it half the way through the tag list of 2012? Stefan On Wed, Jul 17, 2013 at 2:38 PM, John Kovac <jmkovac(a)cfa.harvard.edu> wrote:

...

Hi Eric, I'm in favor of redefining this standard jack as an equal-weight split, or perhaps for simplicity as 2010+11 vs 2012. John On 7/17/13 11:23 AM, bullock(a)physics.umn.edu wrote:

Hello Everyone, In this post:

http://bicep.caltech.edu/~spuder/analysis_logbook/analysis/20130514_signfli…

we see that the real BB bandpowers come down when going from 2yr to 3yr. However, the 1st/2nd half jack passes, which seemed strange. One thought for why this jack passes is that an even-splitting on tags puts less weight (25%?) in the 1st half. This can be seen in Chris's post:

http://bicep.caltech.edu/~spuder/analysis_logbook/analysis/20130621_B23yr_w…

I was tasked with seeing if the 1st/2nd half jack fails when switching to an even weight splitting, which is 20120212 for B2. But maybe this is

not

the best thing to do, as it could lead to biasing. So, without looking

the results, do we want to change this jack for our upcoming simset to have an even weight split (or even putting 2010/2011 in the first half

and

2012 in the second)? -Eric _______________________________________________ Bicep2-list mailing list Bicep2-list(a)lists.fas.harvard.edu https://lists.fas.harvard.edu/mailman/listinfo/bicep2-list

-- ___________________________________________________________________ John Kovac jmkovac(a)cfa.harvard.edu Assistant Professor, Astronomy and Physics, Harvard University 160 Concord Ave rm 310, Cambridge MA 02138, 617-496-0611 _______________________________________________ Bicep2-list mailing list Bicep2-list(a)lists.fas.harvard.edu https://lists.fas.harvard.edu/mailman/listinfo/bicep2-list

-- Stefan Fliescher - Research Associate University of Minnesota, Tate Lab Room 237, 116 Church Street S.E. Minneapolis, MN, 55455 Phone: 612-626-6581

Chris Sheehy

4:49 p.m.

Hi, Just to be annoyingly academic, Stefan pointed out to me that all he meant was that we shouldn't define a bunch of jacks, cherry pick the ones with high or low PTEs, and still expect a flat PTE distribution. That I agree with! -Chris On Wed, Jul 17, 2013 at 2:54 PM, Stefan Fliescher <fliesche(a)physics.umn.edu>wrote;wrote:

...

Hi Eric, I'm in favor of redefining this standard jack as an equal-weight split, or perhaps for simplicity as 2010+11 vs 2012. John On 7/17/13 11:23 AM, bullock(a)physics.umn.edu wrote:

Hello Everyone, In this post:

http://bicep.caltech.edu/~spuder/analysis_logbook/analysis/20130514_signfli…

we see that the real BB bandpowers come down when going from 2yr to 3yr. However, the 1st/2nd half jack passes, which seemed strange. One

thought

for why this jack passes is that an even-splitting on tags puts less weight (25%?) in the 1st half. This can be seen in Chris's post:

http://bicep.caltech.edu/~spuder/analysis_logbook/analysis/20130621_B23yr_w…

I was tasked with seeing if the 1st/2nd half jack fails when switching

an even weight splitting, which is 20120212 for B2. But maybe this is

not

the best thing to do, as it could lead to biasing. So, without looking

the results, do we want to change this jack for our upcoming simset to have an even weight split (or even putting 2010/2011 in the first half

and

2012 in the second)? -Eric _______________________________________________ Bicep2-list mailing list Bicep2-list(a)lists.fas.harvard.edu https://lists.fas.harvard.edu/mailman/listinfo/bicep2-list

-- Stefan Fliescher - Research Associate University of Minnesota, Tate Lab Room 237, 116 Church Street S.E. Minneapolis, MN, 55455 Phone: 612-626-6581 _______________________________________________ Bicep2-list mailing list Bicep2-list(a)lists.fas.harvard.edu https://lists.fas.harvard.edu/mailman/listinfo/bicep2-list

-- ********************************************************************** Christopher Sheehy - Ph.D. candidate - University of Chicago Research Specialist, University of Minnesota, Department of Physics Room 220 Tate, 116 Church Street S.E. Minneapolis, MN, 55455 Tel: 612-625-1802 Fax: 612-624-4578 email: csheehy(a)uchicago.edu **********************************************************************

bullock＠physics.umn.edu

5:36 p.m.

Hi Stefan, It turns out that I don't have a firm date for the half-weight point because the 3-yr real pairmaps I've looked at used out-of-date round2 cut thresholds. For Chris's 1236/real_b_3yr, the splitdate is 20120212 For my 1810/real_a, the splitdate is 20120106 For Stefan's 1450/real_a, the splitdate is 20111026 Stefan's maps should use the most recent round2 cut thresholds, but they are missing the channel cuts. For simplicity, I think we should split between the 2011 and 2012 seasons, otherwise Stefan wouldn't be able to start any of the jack3 coadds until at least one real map is re-coadded using channel cuts. For Keck 2012, the even-weight split date is 20120719, which is only 1 week later than even tag number split. -Eric

...

Hi Eric, I'm in favor of redefining this standard jack as an equal-weight split, or perhaps for simplicity as 2010+11 vs 2012. John On 7/17/13 11:23 AM, bullock(a)physics.umn.edu wrote:

Hello Everyone, In this post:

http://bicep.caltech.edu/~spuder/analysis_logbook/analysis/20130514_signfli…

we see that the real BB bandpowers come down when going from 2yr to

3yr.

However, the 1st/2nd half jack passes, which seemed strange. One

thought

for why this jack passes is that an even-splitting on tags puts less weight (25%?) in the 1st half. This can be seen in Chris's post:

http://bicep.caltech.edu/~spuder/analysis_logbook/analysis/20130621_B23yr_w…

I was tasked with seeing if the 1st/2nd half jack fails when switching

an even weight splitting, which is 20120212 for B2. But maybe this is

not

the best thing to do, as it could lead to biasing. So, without

looking at

the results, do we want to change this jack for our upcoming simset to have an even weight split (or even putting 2010/2011 in the first half

and

2012 in the second)? -Eric _______________________________________________ Bicep2-list mailing list Bicep2-list(a)lists.fas.harvard.edu https://lists.fas.harvard.edu/mailman/listinfo/bicep2-list

************************************************* Eric Bullock, Graduate Student, Minnesota Institute for Astrophysics University of Minnesota 116 Church St. SE Minneapolis, MN 55455 bullock(a)astro.umn.edu **************************************************

Stefan Fliescher

5:16 p.m.

Hi, there seem to be some difficulty due to cuts involved and the current data products to find the exact date for even weights in this jack. But it seems pretty close to just being a 2010+11 vs 2012 split anyways. So let's take this: coaddopt.temporaljack_splitdate='20120101' Any objections? Stefan On Wed, Jul 17, 2013 at 2:38 PM, John Kovac <jmkovac(a)cfa.harvard.edu> wrote:

...

Hi Eric, I'm in favor of redefining this standard jack as an equal-weight split, or perhaps for simplicity as 2010+11 vs 2012. John On 7/17/13 11:23 AM, bullock(a)physics.umn.edu wrote:

Hello Everyone, In this post:

http://bicep.caltech.edu/~spuder/analysis_logbook/analysis/20130514_signfli…

http://bicep.caltech.edu/~spuder/analysis_logbook/analysis/20130621_B23yr_w…

I was tasked with seeing if the 1st/2nd half jack fails when switching to an even weight splitting, which is 20120212 for B2. But maybe this is

not

the best thing to do, as it could lead to biasing. So, without looking

the results, do we want to change this jack for our upcoming simset to have an even weight split (or even putting 2010/2011 in the first half

and

2012 in the second)? -Eric _______________________________________________ Bicep2-list mailing list Bicep2-list(a)lists.fas.harvard.edu https://lists.fas.harvard.edu/mailman/listinfo/bicep2-list

-- Stefan Fliescher - Research Associate University of Minnesota, Tate Lab Room 237, 116 Church Street S.E. Minneapolis, MN, 55455 Phone: 612-626-6581

3958

days inactive

3958

days old

bicep2-list@lists.fas.harvard.edu

Manage subscription

5 comments

4 participants

tags (0)

participants (4)

bullock＠physics.umn.edu
Chris Sheehy
John Kovac
Stefan Fliescher