Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 9 5.  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)
 09/10/2013   15:59:24   (  22.62, 147.46) 09/10/2013   16:02:27    (  23.30, 144.53)  309.91            183
 09/18/2013   15:10:04   (  22.62, 159.79) 09/18/2013   15:11:51    (  23.20, 157.18)  274.67            107
 09/21/2013   03:31:56   (  22.65, 147.47) 09/21/2013   03:28:27    (  23.72, 145.42)  240.37            209
 09/26/2013   15:59:35   (  22.59, 147.40) 09/26/2013   16:02:42    (  23.23, 144.50)  305.45            187