Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP over region 
TLE Epoch: 2013 12 3.  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)
 12/06/2013   15:28:54   (  22.63, 157.42) 12/06/2013   15:31:45    (  23.74, 152.63)  505.39            171
 12/07/2013   02:45:17   (  22.66, 160.86) 12/07/2013   02:44:31    (  21.87, 157.04)  402.95             46
 12/19/2013   03:53:22   (  10.09, 146.09) 12/19/2013   03:56:58    (   7.76, 141.31)  584.85            216
 12/19/2013   14:50:11   (  13.23, 165.59) 12/19/2013   14:50:25    (  14.21, 161.38)  467.44             14
 12/19/2013   16:29:50   (  21.69, 142.13) 12/19/2013   16:29:33    (  22.54, 138.02)  433.99             17
 12/20/2013   03:45:56   (  22.67, 145.81) 12/20/2013   03:42:19    (  23.08, 142.43)  348.96            217
 01/01/2014   03:14:10   (  18.03, 154.68) 01/01/2014   03:15:30    (  17.02, 150.24)  483.48             80
 01/01/2014   15:50:57   (  12.56, 150.40) 01/01/2014   15:48:04    (  13.35, 146.89)  390.50            173