Description: Python script to retrieve daily GPS broadcast ephemeris files from cddis.gsfc.nasa.gov. More information found at https://cddis.nasa.gov/
usage: get_brcd_data.py [-h] [-d DATE] [-m MONTH] [-y YEAR]
DEFAULT: [today's current date]
optional arguments: -h, --help show this help message and exit -d DATE [dd] -m MONTH [mm] -y YEAR [yyyy]