Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 5 25.  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)
 05/26/2012   15:10:31   (  21.28, 159.51) 05/26/2012   15:10:08    (  21.78, 156.85)  280.37             23
 06/03/2012   15:59:52   (  22.62, 147.38) 06/03/2012   16:00:20    (  23.26, 144.55)  297.91             28
 06/11/2012   15:12:47   (  16.80, 158.19) 06/11/2012   15:11:10    (  17.28, 155.79)  260.37             97
 06/17/2012   02:23:56   (  15.83, 165.58) 06/17/2012   02:25:49    (  12.93, 162.40)  471.17            113
 06/19/2012   16:03:30   (  16.71, 145.48) 06/19/2012   16:01:51    (  17.18, 143.09)  259.29             99