Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 12 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)
 12/15/2013   15:59:58   (  22.62, 147.35) 12/15/2013   16:03:27    (  24.71, 144.93)  339.30            209
 12/18/2013   02:42:50   (  22.65, 159.77) 12/18/2013   02:39:21    (  24.94, 157.82)  322.47            209
 12/23/2013   15:10:10   (  22.61, 159.81) 12/23/2013   15:13:19    (  23.20, 157.22)  273.48            189
 12/26/2013   03:30:44   (  18.58, 148.47) 12/26/2013   03:28:22    (  18.20, 146.81)  181.07            142
 01/03/2014   02:41:16   (  20.59, 160.52) 01/03/2014   02:38:21    (  20.24, 159.00)  164.10            175
 01/08/2014   15:08:58   (  22.60, 160.13) 01/08/2014   15:12:26    (  27.43, 158.32)  567.14            208
 01/11/2014   03:27:52   (  12.95, 150.09) 01/11/2014   03:27:04    (  12.56, 148.14)  215.62             48