Changes between Version 1 and Version 2 of Meetings/20091111


Ignore:
Timestamp:
11/25/09 08:53:39 (15 years ago)
Author:
VincentMcIntyre
Comment:

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  • Meetings/20091111

    v1 v2  
    2020== Minutes ==
    2121
     22 Miriad manual::
     23
     24 * questions from users?[[BR]]
     25   not that many, it seems
     26 * the most common questions seem to relate to things that have been taken out in the [http://www.narrabri.atnf.csiro.au/observing/users_guide/html/atug.html new edition of the AT User's Guide]
     27 * people familiar with miriad know where to look for answers
     28 * Ray Norris' [http://atug.wikidot.com/observerscheatsheet ATUG wiki entry] (login required) has glaring problems. It's far from a cookbook, more of a set of reminder notes for blackbelt users.
     29 * Jamie has been rewriting main manual (mostly making notes-to-self) as he goes through various data reductions
     30
     31 ATUG manual::
     32
     33 * don't need to put much miriad material in here, point people to the cookbook.
     34 * advise reading miriad manual before observations
     35 
     36 Changes to miriad::
     37
     38 * divide+conquer:
     39   * Emonts found it made no difference for his use-case (spectral line absorption)
     40   * are there any situations it is really needed?
     41 * bandpass calibration procedure - does it need to change?
     42   * the need is probably frequency-dependent.
     43   * at 5GHz it seems there is no need for repeat bandpass measurements
     44   * at 8GHz, perhaps this is needed
     45   * higher than this we have no information
     46   * Emonts reported an improved rms from 1% to 0.1%, for the case of spectral line at phase centre, 5GHz.
     47 * polarimetry
     48   * possible issue at 7mm, Q & U signs flipped? (Can't find a ticket/fault for it)
     49
     50
    2251== Participants ==
    2352