Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 4 15.  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   16:00:23   (  22.61, 147.36) 04/19/2013   16:01:15    (  23.27, 144.43)  309.70             52
 04/27/2013   15:11:07   (  21.74, 159.54) 04/27/2013   15:10:52    (  22.24, 156.85)  283.19             15
 05/05/2013   16:00:11   (  22.61, 147.43) 05/05/2013   16:01:23    (  23.29, 144.43)  317.02             72