Meetings/20100203

Brief catchup discussion

Agenda

Round table

who's been making progress over the Xmas/January? period

Review tickets

discuss a few recent ones: #91, #92, #93, #102, #103

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Minutes

CABB status

Graeme/Jamie/Markw? reported that some programs requiring zoom modes had been turned into maintenance time. NASA tracking has been canned as well. WEW is using this period to prepare for testing the first 1MHz mode, which will hopefully occur in the week 22-26 Feb.

BLFLAG

MarkW has implemented a nofqav option in the CABB branch, waiting for Jamie to test. (ticket:91)

Autoflagger

Emil has distributed precompiled linux & os/x binaries to various people around the globe. These are available from his ​home page.

CASA

Emil reported on processing CABB data with the CASA package, versions 2.4 & 3.0. v3.0 segfaults all over the place and has quite worrying basic errors in it.

ATLOD/FITS

MarkC reported an inconsistency between ATLOD and FITS in the way antenna coordinates are handled (they were using different conventions for the origin of the baseline coordinates). This has been around since 1999, it appears. The impact is relatively small; it moves antennae by up to half the length of the longest baseline in the array.

Highly polarised sources

Brief discussion of the issue raised by Dominic Schnitzler about how well CABB + MIRIAD deals with rotation measure synthesis observations at 20cm. Some tests were done (at 3 & 6cm) during commissioning time, but the results (processed by Jamie) didn't show anything untoward. More discussion with Dominic is needed, Jamie said he would follow up.

Q & U at 7mm

See ticket:103. Jamie reported some progress, it looks like there is a hardware fault, that could be correctable in software. Some decisions need to be taken about whether it should be corrected, in h/w or s/w.

New project members

Douglas Bock has arrived and MarkC is keen to hand over the Project Leader reins to him. Phil Edwards is now based at Marsfield and could be a valuable contributor particularly regarding CABB. Vince intends to invite them for a meeting next week.

CAForum

Jamie reported he'd had good feedback on the need for a CA forum of some kind but hadn't worked out how to set it up yet. There are numerous competing requirements because of the number of interested parties.

Participants

• Graeme
• MarkC
• MarkW
• Jamie
• Emil
• Vince

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