Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 7 8.  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   15:11:00   (  19.38, 159.01) 07/13/2012   15:10:05    (  19.91, 156.47)  271.64             55
 07/21/2012   15:59:31   (  22.62, 147.40) 07/21/2012   15:59:56    (  23.24, 144.59)  295.79             25
 07/29/2012   15:10:39   (  20.14, 159.19) 07/29/2012   15:09:57    (  20.65, 156.61)  274.48             42