Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 12 10.  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)
 12/12/2012   15:59:25   (  22.63, 147.39) 12/12/2012   15:59:46    (  23.23, 144.59)  294.99             21
 12/20/2012   15:11:23   (  18.42, 158.71) 12/20/2012   15:10:12    (  18.93, 156.23)  268.26             71
 12/28/2012   16:00:14   (  21.68, 147.04) 12/28/2012   15:59:58    (  22.18, 144.35)  282.21             16
 01/03/2013   03:10:37   (  10.09, 154.71) 01/03/2013   03:14:05    (   6.04, 151.33)  584.21            208
 01/05/2013   15:12:52   (  15.57, 157.90) 01/05/2013   15:10:54    (  16.04, 155.57)  254.97            118