Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 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)
 09/15/2012   15:09:54   (  21.03, 159.49) 09/15/2012   15:09:27    (  21.55, 156.86)  278.73             27
 09/23/2012   15:58:36   (  22.63, 147.57) 09/23/2012   15:59:36    (  23.26, 144.62)  310.69             60
 10/01/2012   15:08:47   (  22.58, 160.01) 10/01/2012   15:08:45    (  23.09, 157.29)  284.47              2