would be interesting to see how far we could push the 'confusion noise'
primary beam measurement. I am sure this would never be an accurate way
of measuring the primary beam, but it could serve as a quick and easy
way to get a handle of the gross size and shape of the mean primary beam
from first images of eg. HERA, in the absence of more involved processes.
to test the idea further, what I would need data sets within like +/-
15min of a transit time when the Sun, Cygnus a, and Galactic plane are
all down. looks like in the data i got from Jonnie, the latest file
(63640) the Gal plane is 60 deg past transit. if there were time ranges
a bit later, but before sunrise, that would be tremendous.
I would need the format that Jonnie generated -- compression and first
calibration pass. might be useful to have all the imaging data
converted into FITS files, so as others analyze how they see fit?
doesn't take a lot of space, but might take some time to convert?
chris
On 11/26/2014 02:16 PM, Saul Kohn wrote:
That's a question for the "paperdata" database...
There's raw data on Julian days 2455742 thru 2455749 in
/data3/paper/psa/Jul2011/ (except for psa745, which seems to be in
/data4/raw_data/Jul2011/...)
Check-out
https://github.com/immanuelw/paperdata/blob/master/table_descr.txt,
which points you to at least the raw data. I don't know where the
compressed stuff is...
Saul Aryeh Kohn
PhD student
University of Pennsylvania
-----------------------------------------
ZOO
David Rittenhouse Laboratory
209 South 33rd Street
Philadelphia PA, 19104
On Wed, Nov 26, 2014 at 3:57 PM, danny jacobs <[email protected]
<mailto:[email protected]>> wrote:
hm, thats an interesting idea, though we probably have to
integrate longer to get to confusion limit far out in the beam...
Would need a good many repeated nights. Can't remember how many 64
imaging nights we got.
James?
