Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 1 4.  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)
 01/05/2013   15:11:30   (  18.04, 158.65) 01/05/2013   15:10:13    (  18.54, 156.18)  266.69             77
 01/13/2013   15:59:38   (  22.62, 147.37) 01/13/2013   15:59:37    (  23.17, 144.65)  285.87              1
 01/21/2013   15:11:09   (  18.52, 158.83) 01/21/2013   15:10:00    (  19.05, 156.33)  269.26             69
 01/29/2013   15:59:10   (  22.64, 147.51) 01/29/2013   15:59:31    (  23.29, 144.71)  295.86             21