Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 9 11.  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   (  22.60, 159.79) 09/18/2013   15:11:51    (  23.20, 157.19)  274.90            107
 09/21/2013   03:31:56   (  22.69, 147.46) 09/21/2013   03:28:26    (  23.66, 145.44)  233.64            210
 09/26/2013   15:59:33   (  22.64, 147.42) 09/26/2013   16:02:41    (  23.29, 144.52)  305.72            188
 10/04/2013   15:10:07   (  22.61, 159.77) 10/04/2013   15:12:04    (  23.17, 157.17)  272.80            117
 10/07/2013   03:31:57   (  22.69, 147.44) 10/07/2013   03:28:27    (  23.02, 145.59)  192.93            210