OBS-ID    hhc20070618_1431
OBS-STRT  2007-06-18T05:31:53Z  2007-06-18T14:31:53+09:00  PERIOD   1  OBS-MODE  polcal
OBS-STOP  2007-06-18T05:47:34Z  2007-06-18T14:47:34+09:00  PERIOD   1  OBS-MODE  polcal
OBS-STRT  2007-06-18T05:53:39Z  2007-06-18T14:53:39+09:00  PERIOD   2  OBS-MODE  13  14  15
OBS-STOP  2007-06-18T06:27:13Z  2007-06-18T15:27:13+09:00  PERIOD   2  OBS-MODE  13  14  15