Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 9 29.  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)
 10/01/2012   15:10:14   (  20.12, 159.25) 10/01/2012   15:09:32    (  20.63, 156.67)  275.42             42
 10/09/2012   15:59:28   (  22.62, 147.35) 10/09/2012   15:59:27    (  23.17, 144.63)  285.19              1
 10/15/2012   03:10:19   (  10.09, 154.74) 10/15/2012   03:13:47    (   6.05, 151.37)  583.67            208
 10/17/2012   15:12:51   (  15.00, 157.78) 10/17/2012   15:10:44    (  15.48, 155.48)  251.71            127
 10/23/2012   02:23:23   (  15.95, 165.58) 10/23/2012   02:25:14    (  14.42, 162.18)  403.08            111
 10/25/2012   16:03:09   (  15.47, 145.26) 10/25/2012   16:01:10    (  15.95, 142.94)  254.11            119