Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 7 18.  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)
 07/21/2012   15:59:30   (  22.58, 147.40) 07/21/2012   15:59:55    (  23.24, 144.60)  296.45             25
 07/29/2012   15:10:32   (  20.31, 159.25) 07/29/2012   15:09:53    (  20.85, 156.67)  275.71             39
 08/06/2012   15:59:06   (  22.62, 147.48) 08/06/2012   16:00:00    (  23.27, 144.55)  307.90             54