Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2014 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)
 12/13/2014   03:28:34   (  10.09, 150.33) 12/13/2014   03:31:43    (   9.75, 148.77)  175.36            189
 12/15/2014   15:32:14   (  10.03, 152.34) 12/15/2014   15:29:10    (  10.02, 152.43)    9.48            184
 12/21/2014   02:39:09   (  10.10, 162.69) 12/21/2014   02:40:49    (   9.82, 161.44)  140.93            100
 12/23/2014   16:20:10   (  15.48, 141.19) 12/23/2014   16:18:11    (  15.50, 141.00)   20.23            119
 12/29/2014   03:28:31   (  10.09, 150.36) 12/29/2014   03:31:21    (   9.73, 148.77)  178.57            170
 12/31/2014   15:32:08   (  10.01, 152.38) 12/31/2014   15:28:48    (  10.00, 152.42)    5.01            200