Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 9 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)
 09/18/2013   15:10:04   (  22.61, 159.79) 09/18/2013   15:11:52    (  23.17, 157.18)  274.99            108
 09/21/2013   03:31:55   (  22.68, 147.47) 09/21/2013   03:28:25    (  23.61, 145.45)  231.16            210
 09/26/2013   15:59:33   (  22.61, 147.42) 09/26/2013   16:02:43    (  23.23, 144.50)  306.51            190
 10/04/2013   15:10:05   (  22.62, 159.78) 10/04/2013   15:12:05    (  23.22, 157.18)  274.31            120
 10/07/2013   03:31:54   (  22.65, 147.47) 10/07/2013   03:28:25    (  22.76, 145.65)  186.70            209