Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP over region 
TLE Epoch: 2014 5 17.  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)
 05/21/2014   15:25:32   (  18.87, 159.25) 05/21/2014   15:24:27    (  19.79, 154.69)  488.83             65
 06/03/2014   03:49:46   (  18.14, 147.32) 06/03/2014   03:51:04    (  16.93, 142.26)  552.61             78
 06/03/2014   16:26:12   (  13.09, 143.24) 06/03/2014   16:23:28    (  14.00, 139.05)  464.57            164