Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP over region 
TLE Epoch: 2013 2 2.  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)
 02/09/2013   15:50:34   (  22.64, 149.99) 02/09/2013   15:53:40    (  23.48, 146.22)  396.22            186
 02/10/2013   03:07:10   (  22.66, 153.39) 02/10/2013   03:06:25    (  22.08, 150.67)  287.36             45
 02/10/2013   15:43:17   (  10.02, 149.67) 02/10/2013   15:39:40    (   5.85, 146.82)  561.06            217
 02/22/2013   02:35:40   (  13.04, 162.98) 02/22/2013   02:38:25    (  12.22, 159.34)  405.43            165
 02/22/2013   15:12:22   (  17.69, 158.72) 02/22/2013   15:10:56    (  18.30, 156.01)  294.44             86