Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP over region 
TLE Epoch: 2014 9 12.  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)
 09/14/2014   03:21:16   (  20.07, 155.31) 09/14/2014   03:22:01    (  18.76, 149.85)  590.36             45
 09/14/2014   15:57:50   (  10.94, 151.19) 09/14/2014   15:54:29    (  11.92, 146.57)  515.36            201
 09/27/2014   04:20:27   (  22.64, 140.20) 09/27/2014   04:20:01    (  21.58, 134.89)  560.24             26
 09/27/2014   15:14:26   (  10.02, 162.05) 09/27/2014   15:10:50    (   9.62, 157.14)  539.53            216
 10/10/2014   03:36:46   (  22.67, 151.27) 10/10/2014   03:35:43    (  21.65, 145.97)  557.53             63