obsid   target                  start time      int time    inst    ccd     grat    drop rate(%)
-----------------------------------------------------------------------------------------------------------
2741	CYG_X-1             	28:20844.294		 5.2	ACIS-S	S6		HETG	42.1
2742	CYG_X-1             	30:05608.278		 5.4	ACIS-S	S6		HETG	43.3
2870	CAS_A               	37:75757.925		 2.0	ACIS-S	S6		NONE	7.8
2869	CAS_A               	37:79434.914		 2.0	ACIS-I	I6		NONE	4.5
1949	PUPPIS_N_KNOT       	68:82759.104		21.0	ACIS-S	S2		NONE	11.8
3354	GX_349+2            	99:03447.087		35.2	ACIS-S	S6		HETG	24.9
2743	CYG_X-1             	103:75485.852		 5.8	ACIS-S	S6		HETG	33.8
2531	IM_PEG              	206:41196.947		26.2	ACIS-S	S6		HETG	3.2
2877	CAS_A_[Chip_S3,     	242:59202.950		 2.0	ACIS-S	S6		NONE	7.4
2876	CAS_A_[Chip_I3,     	243:42890.146		 2.0	ACIS-I	I6		NONE	4.4
3081	HS_2146+0428        	251:75100.012		 9.5	ACIS-S	I6		NONE	5.9