Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP over region 
TLE Epoch: 2013 12 27.  Predictions up to the next  30.0 days:

Date(NOAA-19)     Time(NOAA-19)   NOAA-19 Lat/Lon   Date(NPP)     Time(NPP)    NPP Lat/Lon    Distance (km)   Time Diff(sec)
 01/01/2014   03:13:58   (  17.74, 154.78) 01/01/2014   03:15:23    (  16.69, 150.33)  486.91             85
 01/01/2014   15:50:43   (  12.94, 150.53) 01/01/2014   15:47:56    (  13.72, 146.99)  392.62            167
 01/13/2014   15:17:20   (  22.63, 160.66) 01/13/2014   15:19:58    (  23.74, 155.76)  515.46            158
 01/14/2014   02:33:44   (  22.65, 164.09) 01/14/2014   02:32:43    (  21.88, 160.17)  412.30             61
 01/14/2014   04:14:44   (  18.93, 139.50) 01/14/2014   04:13:09    (  18.12, 135.72)  409.49             95
 01/26/2014   03:41:31   (  10.07, 149.40) 01/26/2014   03:45:08    (   8.00, 144.42)  592.81            217