Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP over region 
TLE Epoch: 2014 9 19.  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)
 09/27/2014   04:20:28   (  22.68, 140.19) 09/27/2014   04:20:00    (  21.61, 134.89)  559.32             28
 09/27/2014   15:14:26   (  10.03, 162.05) 09/27/2014   15:10:50    (   9.52, 157.13)  542.72            216
 10/10/2014   03:36:45   (  22.70, 151.27) 10/10/2014   03:35:38    (  21.64, 146.00)  556.05             67