Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 8 2.  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)
 08/04/2013   03:32:02   (  22.68, 147.48) 08/04/2013   03:28:32    (  27.22, 144.60)  582.66            210
 08/09/2013   15:59:38   (  22.63, 147.43) 08/09/2013   16:01:50    (  23.26, 144.58)  300.32            132
 08/17/2013   15:10:11   (  22.59, 159.77) 08/17/2013   15:11:17    (  23.15, 157.21)  269.70             66
 08/20/2013   03:32:00   (  22.65, 147.47) 08/20/2013   03:28:31    (  25.95, 144.88)  451.40            209
 08/25/2013   15:59:34   (  22.60, 147.42) 08/25/2013   16:02:11    (  23.25, 144.53)  304.99            157