obsid   target                  start time      int time    inst    ccd     grat    drop rate(%)
-----------------------------------------------------------------------------------------------------------
12313	Cyg_X-1             	203:59884.304		 6.1	ACIS-S	S6		HETG	27.8
13139	Crab_Nebula         	271:19713.715		 4.6	ACIS-S	S1		NONE	23.9
13146	Crab                	301:65175.679		 4.6	ACIS-S	S1		NONE	22.1
12548	Puppis_A_NE_fil     	314:67990.099		22.1	ACIS-I	I4		NONE	29.0
13183	Puppis_A_NE_fil     	317:34346.618		18.1	ACIS-I	I4		NONE	28.6
13147	Crab                	332:41090.268		 4.6	ACIS-S	S1		NONE	22.0
13204	Crab                	15:00882.302		 4.6	ACIS-S	S1		NONE	27.0