Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP over region 
TLE Epoch: 2014 9 6.  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)
 09/14/2014   03:21:08   (  19.68, 155.40) 09/14/2014   03:21:59    (  18.39, 149.91)  594.20             51
 09/14/2014   15:57:43   (  11.30, 151.26) 09/14/2014   15:54:28    (  12.28, 146.64)  515.50            195
 09/27/2014   04:20:25   (  22.68, 140.19) 09/27/2014   04:20:21    (  21.64, 134.82)  564.96              4
 09/27/2014   15:14:23   (  10.06, 162.04) 09/27/2014   15:10:47    (  10.96, 157.41)  517.03            216