Modification of the Shower Database of the IAU Meteor Data Center

Context. The Shower Database (SD) of the Meteor Data Center (MDC) has been operating for 15 yr and is used by entire community meteor astronomers. It contains showers categorised in individual lists on basis their status. Since inception SD, no objective rules moving between have established. content SD not yet checked correctness data contained therein. Aims. Our aims are (1) to formulate criteria nominating established status, (2) improve removal showers, (3) verify enhance (4) user area MDC SD. Methods. from Working list Lists or removed were generated using an empirical evaluation impact registered showers. parameters each stream included was comparing them with values given source publications. Results. We developed a set be objectified temporary permanent list. Both our proposed new procedures approved vote commission F1 IAU July 2022. verified more than 1350 records introduced ~1700 corrections. shower characterisation. As result verification procedure, 117 moved List October 2022, 923 110 which 813 also improved added simple tool allow quick check similarity those database.