Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 7 25.  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   15:09:56   (  22.60, 159.85) 08/01/2013   15:10:55    (  23.19, 157.27)  272.74             59
 08/04/2013   03:31:43   (  22.64, 147.56) 08/04/2013   03:28:14    (  26.19, 144.86)  480.08            209
 08/09/2013   15:59:12   (  22.59, 147.52) 08/09/2013   16:01:49    (  23.28, 144.58)  311.13            157
 08/17/2013   15:09:34   (  22.62, 159.93) 08/17/2013   15:11:16    (  23.21, 157.23)  284.61            102
 08/20/2013   03:31:20   (  22.65, 147.63) 08/20/2013   03:27:51    (  23.63, 145.48)  246.01            209