:Name: mvn_kp_download_files :Author: John Martin :Description: Download in situ or IUVS kp data files from the Maven SDC web service. Download either CDF or ASCII versions of the data files. :Keywords: filenames: in, optional, type=string or strarr Scalar or array of filename strings to download list_files: in, optional, type=boolean Print to standard output a list of files instead of actually downloading insitu: in, optional, type=boolean Search/download in situ KP data files iuvs: in, optional, type=boolean Search/download IUVS KP data files text_files: in, optional, type=boolean Search/download ASCII (.txt) versions of the KP data files cdf_files: in, optional, type=boolean Search/download CDF (.cdf) versions of the KP data files new_files: in, optional, type=boolean Only download files you don't already have saved locally start_date: in, optional, type=string Beginning of time range to search/download files. Format='YYYY-MM-DD' end_date: in, optional, type=string End of time range to search/download files. Format='YYYY-MM-DD' update_prefs: in, optional, type=boolean Before searching or downloading data, allow user to update kp_preferences.txt - which contains paths to the in situ data and IUVS data. After selecting new paths to data folders, search or download of data files will continue. only_update_prefs: in, optional, type=boolean Allow user to update kp_preferences.txt - which contains paths to the in situ data and IUVS data. After selecting new paths to data folders, procedure will return - not downloading any data. local_dir: in, optional, type=string Specify a directory to download files to - this overrides what's stored in kp_preferences.txt debug: in, optional, type=boolean On error, - "Stop immediately at the statement that caused the error and print the current program stack." If not specified, error message will be printed and IDL with return to main program level and stop. Credit to Doug Lindholm for initial version of this procedure.