Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP over region 
TLE Epoch: 2013 10 18.  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)
 10/18/2013   03:25:58   (  22.65, 150.28) 10/18/2013   03:22:22    (  23.49, 147.08)  340.78            216
 10/30/2013   02:55:18   (  20.43, 158.44) 10/30/2013   02:55:56    (  19.51, 154.44)  431.15             38
 10/30/2013   15:31:53   (  10.47, 154.29) 10/30/2013   15:28:24    (  11.17, 151.17)  349.02            209
 11/11/2013   14:58:20   (  22.62, 164.84) 11/11/2013   14:59:33    (  23.58, 160.53)  453.67             73
 11/12/2013   03:56:52   (  22.68, 142.74) 11/12/2013   03:53:47    (  22.04, 139.58)  333.41            185