Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP over region 
TLE Epoch: 2014 3 27.  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)
 03/31/2014   03:48:57   (  19.94, 146.52) 03/31/2014   03:49:44    (  18.83, 141.87)  502.90             47
 03/31/2014   16:25:33   (  11.04, 142.37) 03/31/2014   16:22:13    (  11.87, 138.61)  420.85            200
 04/12/2014   15:50:50   (  22.63, 153.17) 04/12/2014   15:53:54    (  23.89, 147.81)  565.07            184
 04/13/2014   03:07:10   (  22.70, 156.60) 04/13/2014   03:06:41    (  21.83, 152.18)  464.47             29
 04/13/2014   15:43:18   (  10.04, 152.91) 04/13/2014   15:39:41    (   7.03, 148.55)  584.74            217
 04/25/2014   15:08:09   (  22.63, 163.98) 04/25/2014   15:09:57    (  23.81, 158.86)  538.80            108