Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 9 1.  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)
 09/02/2013   15:09:56   (  22.59, 159.83) 09/02/2013   15:11:35    (  23.18, 157.20)  277.50             99
 09/05/2013   03:31:42   (  22.64, 147.54) 09/05/2013   03:28:13    (  23.83, 145.41)  254.69            209
 09/10/2013   15:59:09   (  22.63, 147.53) 09/10/2013   16:02:27    (  23.30, 144.53)  316.06            198
 09/13/2013   02:42:02   (  22.68, 159.94) 09/13/2013   02:38:32    (  27.05, 157.25)  557.77            210
 09/18/2013   15:09:25   (  22.63, 159.96) 09/18/2013   15:11:50    (  23.27, 157.20)  290.92            145
 09/21/2013   03:31:10   (  22.70, 147.65) 09/21/2013   03:28:03    (  22.29, 145.78)  197.90            187
 09/26/2013   15:58:31   (  22.60, 147.67) 09/26/2013   16:01:59    (  25.78, 145.15)  436.48            208