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I was wondering if anybody can solve this problem in R?

I want to read the lines (get its content) from the following web-page using R functions such as

readLines() , read_html(), getURL() , and etc.:  

https://nrt3.modaps.eosdis.nasa.gov/archive/allData/6/MOD09GA/2019/107/

(You may be asked for user: U_of_C_R_MODIS & pas: Mas_4033708404 to login). In regard to login, I am using this code in R, which works well for all other wep-pages, excluding this one:

setNASAauth(username= "U_of_C_R_MODIS",password= "Mas_4033708404", update=TRUE)

For example:

url_content <- readLines("https://nrt3.modaps.eosdis.nasa.gov/archive/allData/6/MOD09GA/2019/107")

However, all these functions give error as follow:

Unknown SSL protocol error in connection to nrt3.modaps.eosdis.nasa.gov:443 

Or this one:

HTTP error 404.

Or this one:

HTTP status was '404 Not Found'

I spend time to find the solution either by myself or google it, but I failed to solve it. Any comments and suggestion will be highly appreciated.

Canada2015
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  • It seems this error comes from "wget" based on this post: https://github.com/termux/termux-packages/issues/3426 Any comments may help, please. – Canada2015 Apr 21 '19 at 20:13
  • I have downloaded the latest Wget version, but R is not able to read the web-page – Canada2015 Apr 21 '19 at 20:15

0 Answers0