Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 6 4.  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)
 06/06/2013   15:59:54   (  22.62, 147.43) 06/06/2013   16:01:27    (  23.30, 144.50)  309.11             93
 06/14/2013   15:10:20   (  22.62, 159.81) 06/14/2013   15:10:43    (  23.18, 157.19)  276.20             23
 06/22/2013   15:59:37   (  22.61, 147.48) 06/22/2013   16:01:25    (  23.28, 144.55)  309.29            108
 06/30/2013   15:09:58   (  22.62, 159.88) 06/30/2013   15:10:40    (  23.20, 157.24)  278.07             42