Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 12 9.  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)
 12/12/2012   15:59:24   (  22.60, 147.40) 12/12/2012   15:59:46    (  23.25, 144.59)  296.01             22
 12/20/2012   15:10:53   (  19.35, 158.99) 12/20/2012   15:09:58    (  19.87, 156.45)  272.82             55
 12/28/2012   15:59:17   (  22.63, 147.44) 12/28/2012   15:59:45    (  23.24, 144.60)  298.37             28
 01/05/2013   15:10:04   (  20.82, 159.45) 01/05/2013   15:09:33    (  21.35, 156.82)  279.19             31