Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 12 3.  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)
 12/07/2013   15:10:41   (  22.60, 159.66) 12/07/2013   15:12:55    (  23.14, 157.23)  256.04            134
 12/10/2013   03:32:23   (  22.23, 147.45) 12/10/2013   03:29:01    (  21.90, 145.92)  161.18            202
 12/15/2013   16:00:02   (  22.60, 147.33) 12/15/2013   16:03:30    (  24.58, 144.89)  332.20            208
 12/18/2013   02:42:55   (  22.66, 159.75) 12/18/2013   02:39:26    (  25.24, 157.74)  351.60            209
 12/23/2013   15:10:22   (  22.63, 159.76) 12/23/2013   15:13:21    (  23.18, 157.21)  268.98            179
 12/26/2013   03:31:13   (  19.39, 148.22) 12/26/2013   03:28:38    (  19.04, 146.59)  175.40            155