Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 1 3.  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   15:11:33   (  17.99, 158.63) 01/05/2013   15:10:15    (  18.45, 156.15)  266.33             78
 01/13/2013   16:00:05   (  21.78, 147.12) 01/13/2013   15:59:50    (  22.29, 144.43)  282.58             15
 01/21/2013   15:12:28   (  16.04, 158.11) 01/21/2013   15:10:38    (  16.53, 155.75)  257.76            110
 01/29/2013   16:01:25   (  19.05, 146.35) 01/29/2013   16:00:25    (  19.58, 143.82)  271.86             60