Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 4 22.  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)
 04/27/2013   15:11:16   (  21.47, 159.45) 04/27/2013   15:10:56    (  22.00, 156.79)  280.25             20
 05/05/2013   16:00:18   (  22.63, 147.39) 05/05/2013   16:01:22    (  23.32, 144.44)  311.07             64
 05/13/2013   15:10:42   (  22.65, 159.80) 05/13/2013   15:10:42    (  23.25, 157.11)  282.47              0