obsid   target                  start time      int time    inst    ccd     grat    drop rate(%)
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6371	Puppis_A_NE_Sho     	42:64256.014		30.2	ACIS-I	I4		NONE	10.5
6738	Cas_A[S3,-120,-     	81:84989.355		 2.1	ACIS-S	I6		NONE	9.2
7292	PKS2155-304         	188:11766.775		 9.3	ACIS-S	I5		LETG	60.0
6745	Cas_A[S3,-120,-     	288:17237.165		 2.1	ACIS-S	I6		NONE	9.0