OBS-ID    hhc20070706_1026
OBS-STRT  2007-07-06T01:26:37Z  2007-07-06T10:26:37+09:00  PERIOD   1  OBS-MODE  polcal
OBS-STOP  2007-07-06T01:42:18Z  2007-07-06T10:42:18+09:00  PERIOD   1  OBS-MODE  polcal
OBS-STRT  2007-07-06T02:23:10Z  2007-07-06T11:23:10+09:00  PERIOD   2  OBS-MODE  13  14  15
OBS-STOP  2007-07-06T05:17:42Z  2007-07-06T14:17:42+09:00  PERIOD   2  OBS-MODE  13  14  15
OBS-STRT  2007-07-06T05:18:56Z  2007-07-06T14:18:56+09:00  PERIOD   3  OBS-MODE  polcal
OBS-STOP  2007-07-06T05:34:38Z  2007-07-06T14:34:38+09:00  PERIOD   3  OBS-MODE  polcal
OBS-STRT  2007-07-06T06:52:17Z  2007-07-06T15:52:17+09:00  PERIOD   4  OBS-MODE  13  14  15
OBS-STOP  2007-07-06T08:03:44Z  2007-07-06T17:03:44+09:00  PERIOD   4  OBS-MODE  13  14  15