Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 6 30.  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)
 07/05/2012   15:59:33   (  22.63, 147.41) 07/05/2012   16:00:05    (  23.24, 144.57)  299.12             32
 07/13/2012   15:10:09   (  22.68, 159.75) 07/13/2012   15:10:09    (  23.20, 157.03)  285.14              0
 07/21/2012   15:59:37   (  22.60, 147.36) 07/21/2012   16:02:12    (  23.33, 144.02)  351.06            155