Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 5 10.  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)
 05/13/2013   15:10:31   (  22.63, 159.81) 05/13/2013   15:10:41    (  23.24, 157.12)  283.51             10
 05/21/2013   15:59:33   (  22.60, 147.53) 05/21/2013   16:01:27    (  23.26, 144.45)  324.11            114
 05/29/2013   15:09:37   (  22.63, 160.01) 05/29/2013   15:10:42    (  23.28, 157.16)  300.65             65
 06/01/2013   03:31:18   (  22.69, 147.72) 06/01/2013   03:27:48    (  25.52, 144.92)  424.03            210
 06/06/2013   15:58:31   (  22.64, 147.78) 06/06/2013   16:01:26    (  23.36, 144.51)  343.68            175