Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 10 15.  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   15:09:48   (  22.60, 159.85) 10/20/2013   15:12:14    (  23.18, 157.20)  279.01            146
 10/23/2013   03:31:12   (  21.42, 147.85) 10/23/2013   03:28:03    (  21.04, 146.11)  185.04            189
 10/28/2013   15:58:54   (  22.63, 147.59) 10/28/2013   16:02:23    (  25.52, 145.13)  406.46            209
 10/31/2013   02:41:44   (  22.68, 160.01) 10/31/2013   02:38:14    (  24.11, 158.05)  256.47            210
 11/05/2013   15:08:59   (  22.62, 160.07) 11/05/2013   15:12:19    (  23.24, 157.26)  295.93            200
 11/08/2013   03:29:22   (  18.03, 148.86) 11/08/2013   03:27:10    (  17.63, 146.98)  203.89            132