Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 6 9.  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)
 06/14/2013   15:10:19   (  22.62, 159.81) 06/14/2013   15:10:42    (  23.22, 157.20)  276.51             23
 06/22/2013   15:59:34   (  22.64, 147.49) 06/22/2013   16:01:24    (  23.30, 144.55)  309.85            110
 06/30/2013   15:09:54   (  22.63, 159.90) 06/30/2013   15:10:38    (  23.24, 157.25)  279.11             44
 07/03/2013   03:31:40   (  22.67, 147.60) 07/03/2013   03:28:11    (  27.20, 144.59)  587.61            209