Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 12 25.  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)
 12/26/2013   03:31:38   (  20.16, 147.99) 12/26/2013   03:28:50    (  19.82, 146.41)  169.62            168
 12/31/2013   15:59:54   (  22.63, 147.39) 12/31/2013   16:03:23    (  26.23, 145.31)  452.67            209
 01/03/2014   02:42:51   (  22.70, 159.78) 01/03/2014   02:39:21    (  23.68, 158.13)  200.60            210
 01/08/2014   15:10:22   (  22.62, 159.78) 01/08/2014   15:13:40    (  23.21, 157.22)  271.30            198
 01/11/2014   03:30:57   (  18.36, 148.47) 01/11/2014   03:28:39    (  18.04, 146.84)  176.33            138
 01/19/2014   02:42:11   (  21.62, 160.15) 01/19/2014   02:38:59    (  21.32, 158.73)  150.65            192