1623,2008-02-04 09:00:06,116.40176,39.92388
1623,2008-02-05 09:10:00,116.40141,39.92403
1623,2008-02-06 09:19:53,116.40146,39.92414
1623,2008-02-08 09:39:39,116.40136,39.92416
