Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 7 13.  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)
 07/21/2012   15:59:29   (  22.60, 147.40) 07/21/2012   15:59:55    (  23.21, 144.59)  296.38             26
 07/29/2012   15:10:31   (  20.30, 159.25) 07/29/2012   15:09:52    (  20.78, 156.65)  275.42             39
 08/06/2012   15:59:04   (  22.63, 147.48) 08/06/2012   15:59:54    (  23.28, 144.58)  306.19             50