Eric:
This is extremely useful. I found some documentation on the site, re the
API. I am way over my head here, but I need (for one) data on Lunar
Declination over, say, a year, but really month-by-month. Is there a "for
Dummies" to get this data off of this server? A cookbook? Can I do
something like this?
grep -E 'oon&&eclin' >${tmpfile}
?
Thank you again.
On Wed, Nov 7, 2018 at 5:59 AM Eric S Fraga <[email protected]> wrote:
> Time for a very geeky post...
>
> Recently, on the remind (diary tool I used to use) mailing list,
> somebody posted a script for converting solar data (perihelion, equinox,
> ...) to remind input. I've done the same for org so if you're
> interested in that kind of information and want your agenda to show
> this, here is the script:
>
> #+begin_src shell :results output raw
> tmpfile=$(mktemp /tmp/date.XXXXXX)
> for year in $(seq 2018 2068)
> do
> links http://aa.usno.navy.mil/seasons?year=${year} -dump | \
> grep -E 'helion|quinox|olstice' > ${tmpfile}
> while read -r line
> do
> item=$(echo $line | awk '{print $1}')
> date="$(echo $line | awk '{print $5 " " $4 " " $3}') ${year}"
> isodate=$(date --date="${date}" +"%Y-%m-%d %H:%M")
> echo "** <${isodate}> $item"
> done < ${tmpfile}
> done
> rm ${tmpfile}
> #+end_src
>
> Notes:
>
> 1. this is for Linux and assumes bash as the shell.
> 2. the default is UTC (and this is where I wish org supported time
> zones...).
> 3. I believe the URL for the US Naval Observatory in the code above
> accepts "?tz=N?dst=M" for different time zones (some index N) and
> daylight savings options (M set to 0 or 1 maybe?) but I haven't
> played with these options.
> 4. you will need to install "links".
>
> Enjoy but use at own risk etc. ;-)
>
> --
> Eric S Fraga via Emacs 27.0.50, Org release_9.1.11-620-ga548e4
>
>
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