Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 9 9.  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   (  22.61, 147.47) 09/10/2013   16:02:27    (  23.30, 144.53)  309.92            183
 09/18/2013   15:10:04   (  22.61, 159.79) 09/18/2013   15:11:51    (  23.19, 157.19)  274.72            107
 09/21/2013   03:31:56   (  22.66, 147.47) 09/21/2013   03:28:27    (  23.72, 145.42)  240.16            209
 09/26/2013   15:59:34   (  22.63, 147.41) 09/26/2013   16:02:41    (  23.27, 144.51)  305.28            187
 10/04/2013   15:10:10   (  22.61, 159.76) 10/04/2013   15:12:04    (  23.19, 157.18)  271.78            114
 10/07/2013   03:31:59   (  22.67, 147.44) 10/07/2013   03:28:30    (  23.23, 145.54)  203.81            209