OBS-ID    hhc20040521_0916
OBS-STRT  2004-05-21T00:16:58Z  2004-05-21T09:16:58+09:00  PERIOD   1  OBS-MODE  13  14  15
OBS-STOP  2004-05-21T00:43:21Z  2004-05-21T09:43:21+09:00  PERIOD   1  OBS-MODE  13  14  15
OBS-STRT  2004-05-21T00:44:54Z  2004-05-21T09:44:54+09:00  PERIOD   2  OBS-MODE  13  14  15
OBS-STOP  2004-05-21T00:45:55Z  2004-05-21T09:45:55+09:00  PERIOD   2  OBS-MODE  13  14  15
OBS-STRT  2004-05-21T01:08:14Z  2004-05-21T10:08:14+09:00  PERIOD   3  OBS-MODE  13  14  15
OBS-STOP  2004-05-21T05:08:03Z  2004-05-21T14:08:03+09:00  PERIOD   3  OBS-MODE  13  14  15
OBS-STRT  2004-05-21T05:30:25Z  2004-05-21T14:30:25+09:00  PERIOD   4  OBS-MODE  13  14  15
OBS-STOP  2004-05-21T08:04:57Z  2004-05-21T17:04:57+09:00  PERIOD   4  OBS-MODE  13  14  15