Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 6 28.  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)
 06/30/2013   15:10:16   (  22.61, 159.81) 06/30/2013   15:10:38    (  23.20, 157.25)  269.79             22
 07/08/2013   15:59:44   (  22.61, 147.43) 07/08/2013   16:01:20    (  23.25, 144.61)  297.69             96
 07/16/2013   15:10:16   (  22.60, 159.79) 07/16/2013   15:10:33    (  23.17, 157.31)  261.40             17
 07/24/2013   15:59:39   (  22.58, 147.43) 07/24/2013   16:01:14    (  23.18, 144.66)  290.96             95