Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 8 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)
 08/17/2013   15:10:11   (  22.58, 159.78) 08/17/2013   15:11:17    (  23.16, 157.22)  269.73             66
 08/20/2013   03:32:00   (  22.65, 147.47) 08/20/2013   03:28:31    (  25.94, 144.89)  450.68            209
 08/25/2013   15:59:34   (  22.58, 147.42) 08/25/2013   16:02:12    (  23.21, 144.52)  305.36            158
 09/02/2013   15:09:59   (  22.62, 159.82) 09/02/2013   15:11:37    (  23.19, 157.19)  276.98             98
 09/05/2013   03:31:47   (  22.70, 147.50) 09/05/2013   03:28:17    (  23.93, 145.37)  257.36            210