Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 7 1.  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)
 07/08/2013   15:59:48   (  22.63, 147.41) 07/08/2013   16:01:20    (  23.29, 144.60)  296.94             92
 07/16/2013   15:10:26   (  22.63, 159.74) 07/16/2013   15:10:34    (  23.17, 157.29)  258.44              8
 07/24/2013   15:59:57   (  22.63, 147.35) 07/24/2013   16:01:14    (  23.24, 144.65)  284.70             77