Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 7 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)
 07/24/2013   15:59:31   (  22.63, 147.47) 07/24/2013   16:01:28    (  23.28, 144.63)  300.29            117
 08/01/2013   15:09:53   (  22.64, 159.87) 08/01/2013   15:10:58    (  23.20, 157.26)  275.07             65
 08/04/2013   03:31:40   (  22.66, 147.57) 08/04/2013   03:28:11    (  25.77, 144.96)  435.43            209
 08/09/2013   15:59:06   (  22.59, 147.55) 08/09/2013   16:01:56    (  23.29, 144.55)  316.77            170