OBS-ID    hhc20020111_0831
OBS-STRT  2002-01-10T23:31:29Z  2002-01-11T08:31:29+09:00  PERIOD   1  OBS-MODE  11  12
OBS-STOP  2002-01-10T23:49:55Z  2002-01-11T08:49:55+09:00  PERIOD   1  OBS-MODE  11  12
OBS-STRT  2002-01-11T00:32:31Z  2002-01-11T09:32:31+09:00  PERIOD   2  OBS-MODE  11  12
OBS-STOP  2002-01-11T05:10:54Z  2002-01-11T14:10:54+09:00  PERIOD   2  OBS-MODE  11  12
OBS-STRT  2002-01-11T05:32:55Z  2002-01-11T14:32:55+09:00  PERIOD   3  OBS-MODE  11  12
OBS-STOP  2002-01-11T05:32:58Z  2002-01-11T14:32:58+09:00  PERIOD   3  OBS-MODE  11  12