obsid   target                  start time      int time    inst    ccd     grat    drop rate(%)
-----------------------------------------------------------------------------------------------------------
2238	XMM_13HR_-_FIEL     	160:45942.491		29.6	ACIS-I	I6		NONE	3.1
1914	SAX_J1752.3-313     	265:24555.284		 0.1	ACIS-S	I5		NONE	3.8