Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 4 12.  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)
 04/19/2013   16:00:22   (  22.61, 147.37) 04/19/2013   16:01:15    (  23.25, 144.42)  309.96             53
 04/27/2013   15:10:59   (  21.92, 159.61) 04/27/2013   15:10:47    (  22.47, 156.91)  284.04             12
 05/05/2013   15:59:58   (  22.63, 147.49) 05/05/2013   16:01:20    (  23.30, 144.44)  321.06             82