Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 5 19.  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)
 05/21/2013   15:59:57   (  22.60, 147.43) 05/21/2013   16:01:27    (  23.26, 144.45)  314.00             90
 05/29/2013   15:10:31   (  22.60, 159.78) 05/29/2013   15:10:44    (  23.16, 157.13)  278.34             13
 06/06/2013   15:59:53   (  22.62, 147.43) 06/06/2013   16:01:28    (  23.25, 144.49)  309.68             95
 06/14/2013   15:10:16   (  22.60, 159.82) 06/14/2013   15:10:43    (  23.19, 157.18)  278.19             27