Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 7 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)
 07/08/2013   15:59:43   (  22.58, 147.43) 07/08/2013   16:01:20    (  23.19, 144.60)  298.03             97
 07/16/2013   15:10:14   (  22.60, 159.80) 07/16/2013   15:10:33    (  23.15, 157.31)  262.16             19
 07/24/2013   15:59:35   (  22.60, 147.45) 07/24/2013   16:01:13    (  23.20, 144.67)  292.26             98
 08/01/2013   15:10:00   (  22.62, 159.84) 08/01/2013   15:10:24    (  23.16, 157.39)  258.00             24