Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 7 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)
 08/01/2013   15:10:09   (  22.64, 159.81) 08/01/2013   15:10:55    (  23.18, 157.27)  267.07             46
 08/04/2013   03:32:01   (  22.64, 147.48) 08/04/2013   03:28:32    (  27.25, 144.59)  589.96            209
 08/09/2013   15:59:40   (  22.58, 147.41) 08/09/2013   16:01:51    (  23.23, 144.57)  300.24            131
 08/17/2013   15:10:13   (  22.62, 159.77) 08/17/2013   15:11:17    (  23.18, 157.22)  268.73             64
 08/20/2013   03:32:03   (  22.64, 147.46) 08/20/2013   03:28:34    (  26.10, 144.84)  467.26            209
 08/25/2013   15:59:38   (  22.59, 147.40) 08/25/2013   16:02:11    (  23.22, 144.52)  303.29            153