Automated Data Management of SLR-Data and Products at the EUROLAS Data Center (EDC)

摘要

Within the ILRS, the EUROLAS Data Center (EDC) at the DGFI operates as ILRS Data Center adjacent to the CDDIS. Over the last years the data volume of SLR observations, predictions and products increased. An additional hourly and daily data exchange between CDDIS/HTSI and EDC demands an automated system for the management of data. This automated system checks the formats of incoming data (quick-look, full-rate, CRD, CPF). Allvalid data sets are published on FTP. Additionally all valid predictions are distributed via mail. The permanent upload of data to the EDC requires also a high available server structure consisting of two servers to minimize the downtime of FTP, web server, etc. The distribution of users to the available services on the servers is realized by using port forwarding of Iptables. This requires an additional timely synchronization between FTP and especially databases for the data management. Furthermore the mailing lists (SLR-Mail, SLR-Report) are automated by using the open source tool Mailman.