Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2014 12 21.  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)
 12/23/2014   16:20:25   (  15.03, 141.06) 12/23/2014   16:18:18    (  15.04, 140.90)   17.04            127
 12/29/2014   03:28:41   (  10.08, 150.32) 12/29/2014   03:31:19    (   9.73, 148.78)  173.05            158
 12/31/2014   15:32:17   (  10.05, 152.35) 12/31/2014   15:28:48    (   9.83, 152.40)   24.92            209
 01/06/2015   02:39:00   (  10.11, 162.75) 01/06/2015   02:40:21    (   9.85, 161.46)  143.86             81
 01/08/2015   16:20:07   (  14.67, 141.10) 01/08/2015   16:17:54    (  14.72, 140.86)   26.28            133
 01/14/2015   03:27:56   (  10.09, 150.53) 01/14/2015   03:30:48    (   9.74, 148.83)  190.95            172
 01/16/2015   15:31:03   (  11.15, 152.84) 01/16/2015   15:27:52    (  11.16, 152.76)    9.74            191