Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 7 12.  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)
 07/13/2012   15:11:01   (  19.34, 159.00) 07/13/2012   15:10:06    (  19.87, 156.46)  271.87             55
 07/21/2012   15:59:29   (  22.62, 147.41) 07/21/2012   15:59:55    (  23.24, 144.59)  296.40             26
 07/29/2012   15:10:32   (  20.30, 159.24) 07/29/2012   15:09:53    (  20.82, 156.66)  275.62             39
 08/06/2012   15:59:08   (  22.58, 147.46) 08/06/2012   16:00:00    (  23.21, 144.54)  307.10             52