Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 9 1.  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)
 09/07/2012   15:59:08   (  22.61, 147.45) 09/07/2012   15:59:46    (  23.27, 144.59)  301.85             38
 09/15/2012   15:10:06   (  20.65, 159.37) 09/15/2012   15:09:32    (  21.17, 156.76)  277.01             34
 09/23/2012   15:58:50   (  22.59, 147.50) 09/23/2012   15:59:36    (  23.26, 144.61)  305.33             46