Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 6 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)
 06/14/2013   15:10:19   (  22.61, 159.81) 06/14/2013   15:10:42    (  23.21, 157.20)  276.46             23
 06/22/2013   15:59:35   (  22.58, 147.48) 06/22/2013   16:01:25    (  23.22, 144.54)  309.88            110
 06/30/2013   15:09:56   (  22.62, 159.89) 06/30/2013   15:10:39    (  23.23, 157.25)  278.75             43
 07/03/2013   03:31:41   (  22.66, 147.59) 07/03/2013   03:28:12    (  27.26, 144.57)  594.46            209
 07/08/2013   15:59:08   (  22.59, 147.57) 07/08/2013   16:01:21    (  23.27, 144.60)  313.62            133