Schedule
Expected timing of relevant events
| Event | Date | Implications |
| CABB stage 1 | 2007 Oct-Nov | Two element interferometer equipped; CABB data available |
| Interim CABB installed | 2008 May | 5 ant, 1 freq in parallel with old system |
| Commissioning, shared risk observing | 2008 Jun - Sep | miriad Stage 1,2 needed for CABB data. |
| ATCA shutdown | 2008 October | Old system removed; full CABB installed |
| Science commissioning | 2008 December onwards | |
| 1-3 GHz receivers complete | 2009 ? | Very wide fractional bandwidths possible |
| 4-12 GHz receivers complete | 2009 ? |
The above estimates were entered on 7 Mar 2008.
Previous timetable.
| Event | Date | Implications |
| CABB stage 1 | 2007 Oct-Nov | Two element interferometer equipped; CABB data available |
| ATCA shutdown starts | 2008 Apr or later | |
| Commissioning complete | 2008 Jul or later | miriad Stage 1 needed for astronomy. |
| 1-3 GHz receivers complete | 2009 Mar | Very wide fractional bandwidths possible |
| 4-12 GHz receivers complete | 2009 Jun |
The above estimates were provided on 17 Aug 2007.
See also: the
Project Stages
| Stage | Description |
| 1 | Basic handling of CABB data. Strong frequency dependencies ignored. |
| 2 | 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 | Use of wide "continuum" bands to calibrate zoom bands. |
| 4 | 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. |
| 5 | Wide bands handled explicitly: calibration and imaging tasks become frequency dependent, removing the limitations imposed by the technique used in stage 2. |
| 6 | New algorithms for high-dynamic range imaging and polarimetry |
Read ExplanationOfStages for more detail on what each stage will achieve.
Time (days) required for miriad changes for each stage.
| Application | 1 | 2 | 3 | 4 | 5 | 6 | Note |
| atlod | 28 | 10 | 20 | ||||
| invert | 10 | 5 | 15 | ||||
| uvsplit | 5 | ||||||
| | 8 | new 'bookkeeping' routine | |||||
| | 8 | ||||||
| | | new routine. decided not to proceed. | |||||
| | 10 | ||||||
| gpcal | 20 | ||||||
| | 20 | ||||||
| uvdat | 15 | ||||||
| uvmodel | 20 | ||||||
| mfclean | 15 | ||||||
| new imaging | 30 + 15x | ||||||
| new pol'n | ? | ||||||
| Totals | 38 | 23 | 8 | 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-Mar | Make invert changes. Test & verify to end Stage 1. | 6 | |
| Apr 2008 | ATCA shutdown starts | Stage 1 available for commissioning tests. | |
| Jul 2008 | Commissioning complete | Release:stage 1. Stage 2 available (shared-risk) | 8 |
| Sep 2008 | Release:stage 2 & 3 | ||
| Dec 2008 | Release:stage 4 | 9 | |
| Mar 2009 | 1-3 GHz receivers complete | Very wide fractional bandwidths possible | |
| Jun 2009 | 4-12 GHz receivers complete | ||
| Jun 2009 | Release:stage 5 | 10 |
Last modified 13 years ago
Last modified on 12/13/10 09:35:14
