Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 9 7.  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)
 09/15/2012   15:09:50   (  21.15, 159.52) 09/15/2012   15:09:25    (  21.65, 156.88)  279.21             25
 09/23/2012   15:58:29   (  22.64, 147.60) 09/23/2012   15:59:36    (  23.31, 144.62)  313.83             67
 10/01/2012   15:08:32   (  22.61, 160.07) 10/01/2012   15:08:46    (  23.21, 157.30)  291.37             14