Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 2 12.  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)
 02/14/2013   15:59:19   (  22.61, 147.50) 02/14/2013   16:00:11    (  23.25, 144.56)  309.63             52
 02/22/2013   15:09:34   (  22.61, 159.95) 02/22/2013   15:09:36    (  23.24, 157.21)  289.22              2
 03/02/2013   15:58:30   (  22.59, 147.73) 03/02/2013   16:00:31    (  23.30, 144.50)  339.72            121
 03/10/2013   15:08:18   (  22.62, 160.30) 03/10/2013   15:09:56    (  23.31, 157.16)  330.45             98