Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 4 14.  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, 147.36) 04/19/2013   16:01:14    (  23.28, 144.43)  309.71             52
 04/27/2013   15:11:06   (  21.74, 159.55) 04/27/2013   15:10:51    (  22.28, 156.86)  283.32             15
 05/05/2013   16:00:08   (  22.61, 147.45) 05/05/2013   16:01:22    (  23.27, 144.43)  317.79             74