[R] Package to generate moon phase - SR-SS
jdnewm|| @end|ng |rom dcn@d@v|@@c@@u@
Sun Mar 7 16:37:06 CET 2021
Odd.. came right up for me. Perhaps you might find rseek.org easier to use?
On March 7, 2021 5:03:20 AM PST, Neotropical bat risk assessments and acoustic tools <neotropical.bats using gmail.com> wrote:
>I have not found a package by Googling, but assume there must be at
>least one out there.
>I need to generate/write sun rise-sun set times (civil twilight) and
>I would like to add a start date and end date along with location
>coordinates and have a table generated like below.
>This is from a legacy program acquired some 30 years ago and is no
>longer available. This can only generate 1 month at a time (subset
>below). But for a year at a time both historical and for future dates
>For this legacy program I enter the date and select a location I have
>a simple TXT location file location with time-zone and X-Y coordinates
>and it will generate a month at a time. this can be dumped to the
>clipboard but not written as a TXT or delimited file.
>I am hoping there will be an elegant way to do this in R and have the
>results written to a file for import into an Access DB.
>Tnx for any suggestions on package(s).
> Sun and Moon Data for March 2021
> 17.05°N 88.57°W 5hrW
> Standard Time Civil Twilight
> Sun Moon
> Date Twi. Rise Transit Set Twi. Rise Transit Set %
> 3/1/2021 06:50 07:12 13:07 19:01 19:23 21:36 02:52 09:04 92
> 3/2/2021 06:50 07:11 13:06 19:01 19:23 22:35 03:43 09:47 85
> 3/3/2021 06:49 07:11 13:06 19:02 19:23 23:35 04:35 10:31 76
> 3/4/2021 06:48 07:10 13:06 19:02 19:24 ***** 05:28 11:18 65
Sent from my phone. Please excuse my brevity.
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