Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 5 16.  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)
 05/21/2013   15:59:58   (  22.60, 147.43) 05/21/2013   16:01:27    (  23.27, 144.46)  313.69             89
 05/29/2013   15:10:34   (  22.62, 159.77) 05/29/2013   15:10:44    (  23.17, 157.13)  276.98             10
 06/06/2013   15:59:58   (  22.62, 147.41) 06/06/2013   16:01:27    (  23.25, 144.49)  307.13             89