Re: LBA sensitivity calculator
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From: <adeller_at_email.protected>
Date: Mon, 21 Mar 2005 18:12:53 +1100 (EST)
Hi Tasso,
The rescaling has been fixed - that was something I had left in the
too-hard basket but I realised was actually very easy.
The baseline summaries now display sensitivity and source uptime, but
unfortunately there is no easy way of highlighting baselines which cannot
see the source. It does clearly show that uptime is zero in this case
though.
Also, I've added to the notes down the bottom of the page to make it clear
that you can swap between uv Coverage and beam shape by clicking on the
heading "uv Coverage". I realised that this wasn't really made clear
anywhere. So everyone, if you hadn't spent a few minutes checking out the
beam shapes of different configurations, try it, its really cool!!
Cheers,
Adam
On Mon, 21 Mar 2005, Tasso Tzioumis wrote:
>Hi Adam,
>
>A couple of more points on the calculator that may be easy to implement:
>
>When one uses telescopes very far apart, there is little mutual
>uv-coverage. When there is no common time the baselines are flagged in
>the list as N/A and no sensitivity is reported. However, the uv-plot it
>is still scaled to maximum possible baseline.
>Here is a couple of suggestions to improve things:
>1. Rescale the uv-plot to use ONLY the baselines that exist, not the N/A
>2. Change the listing to also report "Coverage (hrs)" for each
>baseline. Then you can list the sensitivities for all baselines (it is
>useful to know sometimes even if no mutual coverage) and make the
>coverage 0 hrs (or N/A or an *, or red colour). This will give all the
>information that there is now and a little more.
>
>I think you already calculate the coverage times, so it should easy to
>implement. I'll not do it if it requires major effort.
>
>Cheers
>Tasso
>
>--------------------------------------------------------------------
>Tasso Tzioumis, Australia Telescope National Facility, CSIRO
>Location: Cnr Pembroke & Vimiera Rds, Marsfield, NSW, 2122, AUSTRALIA
>Post: PO Box 76, Epping, NSW 1710, AUSTRALIA
>Phone: +61 2 9372 4350 Fax: +61 2 9372 4450 or 4310
>Email: Tasso.Tzioumis_at_csiro.au
>URL: http://www.atnf.csiro.au/~atzioumi/
>--------------------------------------------------------------------
>
Received on 2005-03-21 18:13:17
Date: Mon, 21 Mar 2005 18:12:53 +1100 (EST)
Hi Tasso,
The rescaling has been fixed - that was something I had left in the
too-hard basket but I realised was actually very easy.
The baseline summaries now display sensitivity and source uptime, but
unfortunately there is no easy way of highlighting baselines which cannot
see the source. It does clearly show that uptime is zero in this case
though.
Also, I've added to the notes down the bottom of the page to make it clear
that you can swap between uv Coverage and beam shape by clicking on the
heading "uv Coverage". I realised that this wasn't really made clear
anywhere. So everyone, if you hadn't spent a few minutes checking out the
beam shapes of different configurations, try it, its really cool!!
Cheers,
Adam
On Mon, 21 Mar 2005, Tasso Tzioumis wrote:
>Hi Adam,
>
>A couple of more points on the calculator that may be easy to implement:
>
>When one uses telescopes very far apart, there is little mutual
>uv-coverage. When there is no common time the baselines are flagged in
>the list as N/A and no sensitivity is reported. However, the uv-plot it
>is still scaled to maximum possible baseline.
>Here is a couple of suggestions to improve things:
>1. Rescale the uv-plot to use ONLY the baselines that exist, not the N/A
>2. Change the listing to also report "Coverage (hrs)" for each
>baseline. Then you can list the sensitivities for all baselines (it is
>useful to know sometimes even if no mutual coverage) and make the
>coverage 0 hrs (or N/A or an *, or red colour). This will give all the
>information that there is now and a little more.
>
>I think you already calculate the coverage times, so it should easy to
>implement. I'll not do it if it requires major effort.
>
>Cheers
>Tasso
>
>--------------------------------------------------------------------
>Tasso Tzioumis, Australia Telescope National Facility, CSIRO
>Location: Cnr Pembroke & Vimiera Rds, Marsfield, NSW, 2122, AUSTRALIA
>Post: PO Box 76, Epping, NSW 1710, AUSTRALIA
>Phone: +61 2 9372 4350 Fax: +61 2 9372 4450 or 4310
>Email: Tasso.Tzioumis_at_csiro.au
>URL: http://www.atnf.csiro.au/~atzioumi/
>--------------------------------------------------------------------
>
Received on 2005-03-21 18:13:17