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How to Use the Program
First you need to make sure that you are either in the cloned directory of GOES_Image_Retriever or have your environment variables set up such that any Python file may be accessed from any directory on your computer by typing: python3 example.py.
You start the program by typing into your terminal/command line (may vary depending on operating system and how Python is installed):
python3 GOES_Image_Retriever.py
Then you will be taken to the first user input prompt.
Now you will see an input prompt asking you to choose which satellite to download images from:
Select which satellite to download images from (GOES-16 or GOES-17) by typing its name, e.g. GOES16:
Lowercase versions of the satellite names also works.
Now a prompt asking for a directory name will be shown, this is so that a user may give a desired code name or similar to a particular download run for any purpose. If the user simply presses the Enter key the directory name will be the current date & time in UTC so that each download directory name is unique:
Set the name of the directory that will contain the images from GOES16:
After a directory name has been set the use must enter a start and stop time for the download window in UTC time. Since the smallest time increment for the release of the images is 10 minutes that's the level to which a user can input a start and stop time:
Set a start time in UTC for the download of the first image, e.g. 2020-05-11 22:20:00:
Set a stop time in UTC for the download of the final image, e.g. 2020-05-11 22:30:00:
Now the user will have to select an image resolution from a printed list by entering the number corresponding to the resolution:
These are the image resolutions available:
339x339 pixels
678x678 pixels
1808x1808 pixels
5424x5424 pixels
10848x10848 pixels
Select a resolution by typing either of these values, e.g. 10848:
Then the user will be asked to choose how many images that are to be skipped, that is in regard to a normal download where all images that can be downloaded will be downloaded:
For GOES16 set number to be skipped:
After the above steps the user will be presented with how many images that will be downloaded and a confirmation prompt requiring either a Y, y to go ahead with the download or a N or n to remove the directory previously created and exit the program:
The number of images to be downloaded is: 6
Do you wish to proceed with the download? [Y/n]: y
Depending on how fast your internet connection is along with the selected image resolution and number of images it may take a few minutes to a few hours to get every piece of data.
The result should be the images along with two log files; one CSV-file and one TXT-file (human-readable formatting) with performance info etc.