Hi all,
As you know we are gearing up to run a new "simset" on which which we
sincerely hope to be able to base a publication.
I want to start a thread to compile a *short* list of additional jackknifes,
and possibly data exclusions, which we should look at in this study. We have a
standard set of jackknifes currently built into the pipeline code. Here are
some more we may want:
1) Moon up/down. Definitely want this. Walt has added.
2) Fast/slow transfer functions. Apparently Walt wants this?
3) Good/bad weather? Would have to be asymmetric split to have equal weight in
each half. Is there much point to this?
4) Summer/winter. We are including some data when the sun is way above the
horizon...
5) Epoch's split(s)? We have noted that bandpowers came down a bit going from
2010+2011 to 2010+2011+2012.
6) Best/worse beams? How to define this?...
7) Most/least cross talk? How to define this?...
I'd like to hear more suggestions - much preferably with clear motivation.
Many others have been tried ad hoc with no success - nevertheless if someone
wants to argue that one or more of these should be promoted to the "standard
set" then feel free to do so.
Another way to approach this is to exclude small subsets of data and ask if
the bandpowers shift more than expected. This seems like a softer test to me
but may be appropriate in certain circumstances?
Opinions please,
Clem
P.S. Here is the current jackknife "standard set":
deck: 0/45 vs 180/225
scan: left vs right
1st/2nd: first half of time vs second half of time
tile: 1+3 vs 2+4 (1+2 vs 3+4 ends up being same as deck jack)
az: phase B+E+H vs C+F+I
mux col: even vs odd cols
alt dk: 0/225 vs 45/180
mux row: 0-16 vs 17-33
tile/dk: (1+2)@(0/45)+(3/4)@(180/225) vs (3+4)@(0/45)+(1+2)@(180/225)
FP inner/outer: central vs outer regions of focal plane
tile top/bottom: top vs bottom of each tile (in tile coords)
tile inner/outer: inner vs outer region of each tile
moon up/down: moon above/below horizon
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Clem Pryke - Associate Professor - Physics
University of Minnesota,
Room 313 Tate, 116 Church Street S.E. Minneapolis, MN, 55455
Tel: 612-624-7578 Fax: 612-624-4578 email: pryke(a)physics.umn.edu
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