Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 8 14.  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)
 08/17/2013   15:10:11   (  22.63, 159.79) 08/17/2013   15:11:17    (  23.19, 157.23)  269.43             66
 08/20/2013   03:32:00   (  22.66, 147.47) 08/20/2013   03:28:31    (  25.97, 144.88)  452.59            209
 08/25/2013   15:59:33   (  22.63, 147.44) 08/25/2013   16:02:10    (  23.26, 144.54)  304.74            157
 09/02/2013   15:09:59   (  22.61, 159.82) 09/02/2013   15:11:34    (  23.22, 157.20)  276.00             95
 09/05/2013   03:31:46   (  22.64, 147.52) 09/05/2013   03:28:17    (  24.10, 145.34)  275.13            209
 09/10/2013   15:59:15   (  22.58, 147.49) 09/10/2013   16:02:26    (  23.25, 144.51)  313.35            191