Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 10 20.  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   (  22.58, 159.85) 10/20/2013   15:12:14    (  23.19, 157.21)  278.85            145
 10/23/2013   03:31:14   (  21.48, 147.84) 10/23/2013   03:28:04    (  21.09, 146.10)  184.67            190
 10/28/2013   15:58:56   (  22.64, 147.58) 10/28/2013   16:02:25    (  25.42, 145.11)  398.71            209
 10/31/2013   02:41:46   (  22.69, 160.00) 10/31/2013   02:38:16    (  24.27, 158.01)  267.98            210
 11/05/2013   15:09:03   (  22.63, 160.05) 11/05/2013   15:12:19    (  23.27, 157.26)  294.31            196
 11/08/2013   03:29:31   (  18.26, 148.79) 11/08/2013   03:27:15    (  17.89, 146.92)  201.96            136
 11/16/2013   02:40:08   (  20.65, 160.75) 11/16/2013   02:37:12    (  20.32, 159.05)  181.59            176