Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 12 9.  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)
 12/10/2013   03:32:21   (  22.13, 147.47) 12/10/2013   03:29:00    (  21.83, 145.94)  161.38            201
 12/15/2013   15:59:58   (  22.61, 147.35) 12/15/2013   16:03:26    (  24.74, 144.94)  341.59            208
 12/18/2013   02:42:51   (  22.65, 159.77) 12/18/2013   02:39:22    (  25.02, 157.80)  329.98            209
 12/23/2013   15:10:15   (  22.63, 159.80) 12/23/2013   15:13:20    (  23.21, 157.22)  271.55            185
 12/26/2013   03:30:56   (  18.92, 148.37) 12/26/2013   03:28:29    (  18.60, 146.71)  178.56            147
 01/03/2014   02:41:43   (  21.30, 160.29) 01/03/2014   02:38:36    (  20.99, 158.80)  158.69            187