= Expected timing of relevant events =

|| '''Event''' || '''Date''' || '''Implications''' ||
|| CABB stage 1 || Oct-Nov 2007 || Two element interferometer equipped; CABB data available ||
|| ATCA shutdown starts || not before Apr 2008 ||  ||
|| Commissioning complete || not before July 2008 || miriad Stage 1 needed for astronomy. ||
|| 1-3 GHz receivers complete || Mar 2009 || Very wide fractional bandwidths possible ||
|| 4-12 GHz receivers complete || June 2009 || ||
 
The above estimates were provided on 17 Aug 2007.



|| '''Stage''' || '''Description''' ||
|| 1 || Basic handling of CABB data. Strong frequency dependencies ignored.||
|| 2 || Use of wide "continuum" bands to calibrate zoom bands. Strong frequency dependency handled  using the 'divide and conquer' approach; that is, split up the 2 GHz CABB band into a number of sub-bands for which the existing calibration tasks are adequate. Continuum images will be sums of deconvolved images from the sub-bands, limiting the image quality. ||
|| 3 || Data flagging on the basis of autocorrelations; single dish analysis modes. Broad bands and data volume is expected to make automatic flagging highly desirable, or essential. ||
|| 4 || Wide bands handled explicitly: calibration and imaging tasks become frequency dependent, removing the limitations imposed by the technique used in stage 2.||
|| 5 || New algorithms for high-dynamic range imaging and polarimetry ||



Time (days) required for miriad changes for to each stage.

|| '''Application'''|| '''1''' || '''2'''  || '''3''' || '''4''' || '''5''' ||
|| [wiki:Changes/atlod atlod]      || 28 || 10 || 20 || || ||
|| [wiki:Changes/uvsplit uvsplit]  || 5 || || || || ||
|| [wiki:Changes/gpcal gpcal]      ||   || || || 20 || ||
|| [wiki:Changes/invert  invert]   || 10 || || || 5 || 15 ||
|| [wiki:Changes/bbcal bbcal]      ||   || 8 || || || ||
|| [wiki:Changes/gpcopy gpcopy]    || || 8 || || || ||
|| [wiki:Changes/uvacflag uvacflag]|| || || 5 || || ||
|| [wiki:Changes/uvflag uvflag]    ||  || || 10 || || ||
|| [wiki:Changes/mfcal mfcal]      || || || || 20 || ||
|| [wiki:Changes/uvdat uvdat]      ||  || || || 15 || ||
|| [wiki:Changes/uvmodel uvmodel]  || || || || || 20 ||
|| [wiki:Changes/mfclean mfclean]  || || || || || 15 ||
|| [wiki:Changes/algorithms new imaging]  ||  || || || || 30 + 15x ||
|| [wiki:Changes/polarization new pol'n] || || || || || ? ||
|| '''Totals''' || 45 || 26 || 35 || 60 || 80 + 15x ||
----
|| '''Date''' || '''CABB/rx''' || '''miriad''' || '''M'stone''' ||
|| Aug || || Complete plan. Fork code into Trac. || 1,2,3,4,5 ||
|| Aug-Oct || || Make atlod changes || ||
|| Oct 2007 || CABB stage 1 || Begin test, verify loading || ||
|| Nov || || Make gpcal, uvsplit changes || ||
|| Dec-Mar || || Make invert changes. Test & verify to end Stage 1. || 6 ||
|| Apr 2008 || ATCA shutdown starts  || miriad (Stage 1) available for commissioning tests. || ||
|| Jul 2008 || Commissioning complete || miriad Stage 1 needed for astronomy. miriad Stage 2 available (shared-risk). || 8 ||
|| Dec 2008 || || miriad Stage 3 released || 9 ||
|| Mar 2009 || 1-3 GHz receivers complete  || Very wide fractional bandwidths possible || ||
|| Jun 2009 || 4-12 GHz receivers complete || || ||
|| Jun 2009 ||  || miriad stage 4 released || 10 || 

[/trac/miriad4cabb Wiki Home]