Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 9 17.  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)
 09/18/2013   15:10:04   (  22.60, 159.79) 09/18/2013   15:11:51    (  23.19, 157.19)  274.83            107
 09/21/2013   03:31:56   (  22.68, 147.46) 09/21/2013   03:28:26    (  23.65, 145.44)  233.91            210
 09/26/2013   15:59:34   (  22.59, 147.41) 09/26/2013   16:02:42    (  23.24, 144.51)  305.91            188
 10/04/2013   15:10:08   (  22.61, 159.77) 10/04/2013   15:12:05    (  23.20, 157.18)  272.99            117
 10/07/2013   03:31:58   (  22.69, 147.45) 10/07/2013   03:28:28    (  22.96, 145.61)  191.31            210
 10/12/2013   15:59:31   (  22.62, 147.42) 10/12/2013   16:02:55    (  23.25, 144.51)  306.36            204