function mvn_kp_get_filenames, query=query
;type: science, ancillary, sitl_selection
;; Get server information
sdc_server_spec = mvn_kp_config(/data_retrieval)
url_path = sdc_server_spec.url_path_file_names
if n_elements(query) eq 0 then query = ""
connection = mvn_kp_get_connection(authentication=0) ; FIXME turned off authentication for testing)
result = mvn_kp_execute_neturl_query(connection, url_path, query)
; Check for error (long integer code as opposed to array of strings)
if (size(result, /type) eq 3) then return, result
;Note: empty array = !NULL not supported before IDL8
names = strsplit(result, ",", /extract)
return, names
end