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

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.

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

> On Oct 28, 2019, at 11:42 PM, Marcus D. Leech <patchvonbraun@gmail.com> 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
>
>
>