Config changes for esst_config_uniq.txt:
1291383007.748245 0241
1291383010.757404 0531
1291383079.968072 0531
1291383082.977231 0001
1291383082.977231 0001
1291383085.986390 0000
1291383085.986390 0000
1291383161.215377 0531