Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 9 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)
 09/23/2012   15:59:19   (  22.62, 147.40) 09/23/2012   15:59:40    (  23.22, 144.60)  294.34             21
 10/01/2012   15:12:42   (  15.86, 157.95) 10/01/2012   15:10:49    (  16.31, 155.60)  255.37            113
 10/07/2012   02:23:42   (  15.49, 165.58) 10/07/2012   02:25:41    (  14.60, 162.04)  392.26            119
 10/09/2012   16:04:03   (  14.65, 144.91) 10/09/2012   16:01:50    (  15.14, 142.65)  249.35            133