Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP over region 
TLE Epoch: 2014 8 30.  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)
 09/01/2014   16:40:50   (  12.87, 140.60) 09/01/2014   16:38:02    (  13.89, 135.95)  515.65            168
 09/14/2014   03:21:12   (  19.82, 155.36) 09/14/2014   03:22:01    (  18.50, 149.89)  593.08             49
 09/14/2014   15:57:47   (  11.15, 151.23) 09/14/2014   15:54:30    (  12.16, 146.62)  514.92            197
 09/27/2014   04:20:29   (  22.68, 140.18) 09/27/2014   04:20:22    (  21.65, 134.82)  563.50              7
 09/27/2014   15:14:27   (  10.06, 162.04) 09/27/2014   15:10:51    (  10.77, 157.37)  516.61            216