OBS-ID    hhc20070615_1008
OBS-STRT  2007-06-15T01:08:17Z  2007-06-15T10:08:17+09:00  PERIOD   1  OBS-MODE  polcal
OBS-STOP  2007-06-15T01:23:59Z  2007-06-15T10:23:59+09:00  PERIOD   1  OBS-MODE  polcal
OBS-STRT  2007-06-15T01:54:57Z  2007-06-15T10:54:57+09:00  PERIOD   2  OBS-MODE  13  14  15
OBS-STOP  2007-06-15T05:59:07Z  2007-06-15T14:59:07+09:00  PERIOD   2  OBS-MODE  13  14  15
OBS-STRT  2007-06-15T06:03:02Z  2007-06-15T15:03:02+09:00  PERIOD   3  OBS-MODE  13  14  15
OBS-STOP  2007-06-15T06:54:32Z  2007-06-15T15:54:32+09:00  PERIOD   3  OBS-MODE  13  14  15
OBS-STRT  2007-06-15T07:04:26Z  2007-06-15T16:04:26+09:00  PERIOD   4  OBS-MODE  13  14  15
OBS-STOP  2007-06-15T07:49:36Z  2007-06-15T16:49:36+09:00  PERIOD   4  OBS-MODE  13  14  15