Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2014 12 20.  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)
 12/21/2014   02:39:13   (  10.11, 162.67) 12/21/2014   02:40:48    (   9.81, 161.44)  138.81             95
 12/23/2014   16:20:26   (  14.96, 141.04) 12/23/2014   16:18:18    (  15.01, 140.89)   17.13            128
 12/29/2014   03:28:44   (  10.08, 150.31) 12/29/2014   03:31:20    (   9.72, 148.78)  172.18            156
 12/31/2014   15:32:21   (  10.03, 152.33) 12/31/2014   15:28:52    (   9.63, 152.35)   44.37            209
 01/06/2015   02:39:09   (  10.11, 162.71) 01/06/2015   02:40:24    (   9.85, 161.45)  141.13             75
 01/08/2015   16:20:27   (  14.16, 140.94) 01/08/2015   16:18:06    (  14.23, 140.73)   23.53            141
 01/14/2015   03:28:13   (  10.09, 150.46) 01/14/2015   03:30:52    (   9.70, 148.81)  185.41            159
 01/16/2015   15:31:39   (  10.27, 152.56) 01/16/2015   15:28:14    (  10.27, 152.53)    4.39            205