Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 5 7.  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)
 05/13/2013   15:10:35   (  22.63, 159.80) 05/13/2013   15:10:41    (  23.25, 157.12)  283.18              6
 05/21/2013   15:59:41   (  22.62, 147.52) 05/21/2013   16:01:27    (  23.28, 144.45)  322.85            106
 05/29/2013   15:09:50   (  22.58, 159.98) 05/29/2013   15:10:45    (  23.22, 157.14)  299.48             55
 06/01/2013   03:31:29   (  22.64, 147.71) 06/01/2013   03:28:00    (  26.16, 144.75)  493.19            209