Re: A 21cm sky map of a goodly chunk of the northern sky

[Marcus D. Leech]

On 10/29/2019 08:23 AM, Glen Langston wrote:
> Very nice work Marcus!
>
> Did you put your .grc file on GitHub?
>
> FYI I’ve made some good progress on simultaneously mapping in spectral line
> mode and detecting transient radio flashes.
>
> This design is obtained with
>
> git clone http://www.github.com/WVURAIL/gr-radio_astro
>
> then building and running
>
> cd gr-radio_astro/examples
>
> gnuradio-companion NsfWatch45.grc
>
> This uses a PlutoSdr, and modification would be required for other SDRs.
We'll be building a "mini CHIME" in the spring, with the purpose of 
looking for FRBs at 611MHz in a zenith-oriented swath above the observatory.

> The code is running on three Pi 4Bs and an Odroid N2.
> I look for coincidences in the transient event times.
>
> Again, great work on the map!   Also I confirm that the outer part of our
> Milky Way galaxy is much brighter than the inner galaxy in HI.
> This puzzled me for a while.
>
> Best Regards,
>
> Glen
The memo points to all the GIT repositories involved.

> > On Oct 28, 2019, at 11:42 PM, Marcus D. Leech <address@hidden> wrote:
> >
> > On 10/28/2019 12:55 PM, Daniel Estévez wrote:
> > > El 28/10/19 a las 1:02, Marcus D. Leech escribió:
> > > > Here's the latest version of our 21cm sky map, derived from nearly 5
> > > > months worth of data from our 21cm spectrometer instrument.
> > > >
> > > > All of the real-time processing is handled, naturally, with Gnu Radio,
> > > > and then some Python post-processing.
> > > >
> > > > http://www.ccera.ca/files/21cm.png
> > > Hi Marcus,
> > >
> > > Very interesting. Is there any information online about how the map was
> > > made (both GNU Radio and post-processing)?
> > >
> > > Best,
> > >
> > > Daniel.
> > Finally finalized the memo on this:
> >
> > http://www.ccera.ca/files/memos/ccera-memo-0011.pdf