Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 6 18.  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)
 06/19/2012   15:59:27   (  22.59, 147.46) 06/19/2012   16:00:00    (  23.21, 144.61)  299.97             33
 06/27/2012   15:10:29   (  20.15, 159.28) 06/27/2012   15:09:47    (  20.68, 156.70)  275.42             42
 07/05/2012   15:59:00   (  22.61, 147.54) 07/05/2012   15:59:37    (  23.25, 144.69)  301.44             37
 07/13/2012   15:09:45   (  20.74, 159.53) 07/13/2012   15:09:13    (  21.27, 156.92)  277.63             32