Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP over region 
TLE Epoch: 2014 6 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)
 07/11/2014   16:07:19   (  22.61, 150.05) 07/11/2014   16:08:38    (  23.86, 144.72)  562.06             79
 07/12/2014   03:23:46   (  22.67, 153.46) 07/12/2014   03:21:25    (  21.83, 149.10)  458.30            141
 07/24/2014   15:24:04   (  22.59, 161.00) 07/24/2014   15:24:25    (  23.77, 155.85)  543.55             21
 07/25/2014   04:21:51   (  20.33, 139.51) 07/25/2014   04:18:55    (  22.70, 134.65)  567.41            176