Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 9 13.  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   15:10:03   (  22.62, 159.80) 09/18/2013   15:11:51    (  23.18, 157.18)  274.92            108
 09/21/2013   03:31:55   (  22.67, 147.47) 09/21/2013   03:28:26    (  23.66, 145.43)  234.96            209
 09/26/2013   15:59:33   (  22.62, 147.42) 09/26/2013   16:02:43    (  23.26, 144.51)  306.49            190
 10/04/2013   15:10:05   (  22.63, 159.78) 10/04/2013   15:12:06    (  23.21, 157.18)  274.43            121
 10/07/2013   03:31:54   (  22.64, 147.47) 10/07/2013   03:28:25    (  22.70, 145.66)  185.46            209