Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP over region 
TLE Epoch: 2012 12 5.  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)
 12/09/2012   15:10:42   (  22.62, 159.67) 12/09/2012   15:14:18    (  27.00, 156.66)  573.64            216
 12/10/2012   02:26:17   (  19.62, 163.88) 12/10/2012   02:27:09    (  18.96, 160.97)  314.27             52
 12/10/2012   04:06:43   (  13.86, 139.75) 12/10/2012   04:07:01    (  13.22, 136.96)  310.67             18
 12/10/2012   15:03:18   (  10.52, 159.46) 12/10/2012   14:59:50    (  10.96, 157.51)  219.19            208
 12/22/2012   03:37:50   (  11.72, 147.37) 12/22/2012   03:40:58    (  10.91, 143.84)  394.91            188
 12/22/2012   16:14:47   (  18.57, 142.97) 12/22/2012   16:13:37    (  19.13, 140.41)  277.36             70
 12/23/2012   03:30:07   (  22.67, 147.43) 12/23/2012   03:26:30    (  26.95, 144.69)  549.87            217
 01/03/2013   15:45:19   (  22.61, 151.10) 01/03/2013   15:47:01    (  23.35, 147.81)  347.60            102