Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 4 8.  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)
 04/11/2013   15:11:22   (  20.99, 159.34) 04/11/2013   15:10:54    (  21.53, 156.68)  281.96             28
 04/19/2013   16:00:22   (  22.61, 147.38) 04/19/2013   16:01:14    (  23.27, 144.43)  311.22             52
 04/27/2013   15:11:03   (  21.81, 159.60) 04/27/2013   15:10:49    (  22.35, 156.88)  285.89             14