Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 10 18.  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)
 10/20/2013   15:09:49   (  22.60, 159.85) 10/20/2013   15:12:14    (  23.21, 157.21)  278.87            145
 10/23/2013   03:31:14   (  21.47, 147.84) 10/23/2013   03:28:05    (  21.13, 146.09)  184.76            189
 10/28/2013   15:58:56   (  22.60, 147.57) 10/28/2013   16:02:24    (  25.43, 145.11)  402.20            208
 10/31/2013   02:41:46   (  22.66, 160.01) 10/31/2013   02:38:17    (  24.32, 158.00)  275.73            209
 11/05/2013   15:09:04   (  22.59, 160.04) 11/05/2013   15:12:19    (  23.20, 157.25)  293.85            195
 11/08/2013   03:29:33   (  18.34, 148.77) 11/08/2013   03:27:15    (  17.97, 146.91)  201.09            138