Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 8 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)
 09/07/2012   15:59:08   (  22.59, 147.44) 09/07/2012   15:59:48    (  23.21, 144.57)  302.46             40
 09/15/2012   15:10:02   (  20.84, 159.42) 09/15/2012   15:09:32    (  21.38, 156.80)  278.25             30
 09/23/2012   15:58:48   (  22.61, 147.51) 09/23/2012   15:59:43    (  23.29, 144.58)  309.13             55