Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 8 8.  Predictions up to the next  30.0 days:

Date(AQUA)     Time(AQUA)   AQUA Lat/Lon   Date(NPP)     Time(NPP)    NPP Lat/Lon    Distance (km)   Time Diff(sec)
 08/09/2013   15:59:39   (  22.60, 147.42) 08/09/2013   16:01:51    (  23.22, 144.57)  300.42            132
 08/17/2013   15:10:11   (  22.60, 159.78) 08/17/2013   15:11:17    (  23.17, 157.22)  269.61             66
 08/20/2013   03:32:01   (  22.69, 147.46) 08/20/2013   03:28:31    (  25.94, 144.89)  445.81            210
 08/25/2013   15:59:33   (  22.61, 147.43) 08/25/2013   16:02:10    (  23.24, 144.53)  304.92            157
 09/02/2013   15:10:00   (  22.59, 159.81) 09/02/2013   15:11:36    (  23.16, 157.18)  276.19             96