Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 12 23.  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)
 12/26/2013   03:31:38   (  20.20, 147.99) 12/26/2013   03:28:50    (  19.85, 146.41)  169.74            168
 12/31/2013   15:59:54   (  22.62, 147.39) 12/31/2013   16:03:23    (  26.27, 145.32)  456.81            209
 01/03/2014   02:42:50   (  22.67, 159.79) 01/03/2014   02:39:21    (  23.64, 158.14)  199.84            209
 01/08/2014   15:10:19   (  22.64, 159.80) 01/08/2014   15:13:40    (  23.21, 157.21)  272.38            201
 01/11/2014   03:30:52   (  18.21, 148.52) 01/11/2014   03:28:37    (  17.85, 146.88)  177.86            135
 01/19/2014   02:41:57   (  21.17, 160.28) 01/19/2014   02:38:52    (  20.85, 158.84)  153.68            185