Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 8 9.  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)
 08/14/2012   15:09:55   (  21.32, 159.56) 08/14/2012   15:09:33    (  21.86, 156.91)  280.04             22
 08/22/2012   15:58:41   (  22.59, 147.57) 08/22/2012   15:59:54    (  23.25, 144.56)  316.25             73
 08/30/2012   15:08:50   (  22.60, 160.02) 08/30/2012   15:09:10    (  23.20, 157.22)  293.77             20