Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP over region 
TLE Epoch: 2014 4 15.  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)
 04/25/2014   15:08:10   (  22.63, 163.98) 04/25/2014   15:09:57    (  23.82, 158.87)  538.62            107
 04/26/2014   04:06:32   (  22.66, 141.90) 04/26/2014   04:04:13    (  21.84, 137.88)  424.07            139
 05/08/2014   16:07:24   (  22.63, 149.30) 05/08/2014   16:07:27    (  23.70, 144.55)  500.58              3
 05/09/2014   03:23:44   (  22.66, 152.74) 05/09/2014   03:20:13    (  21.90, 148.95)  399.22            211