Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2014 12 15.  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)
 12/15/2014   15:32:13   (  10.02, 152.34) 12/15/2014   15:29:10    (   9.98, 152.42)    9.32            183
 12/21/2014   02:39:05   (  10.08, 162.71) 12/21/2014   02:40:49    (   9.82, 161.44)  142.57            104
 12/23/2014   16:19:59   (  15.78, 141.28) 12/23/2014   16:18:05    (  15.84, 141.09)   22.34            114
 12/29/2014   03:28:18   (  10.06, 150.42) 12/29/2014   03:31:20    (   9.70, 148.78)  183.96            182
 12/31/2014   15:31:35   (  11.02, 152.67) 12/31/2014   15:28:30    (  11.02, 152.66)    0.95            185
 01/06/2015   02:38:28   (  10.07, 162.89) 01/06/2015   02:40:23    (   9.75, 161.47)  159.62            115
 01/08/2015   16:18:59   (  16.80, 141.71) 01/08/2015   16:17:22    (  16.88, 141.34)   40.05             97