Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP over region 
TLE Epoch: 2012 12 8.  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   (  22.61, 159.67) 12/09/2012   15:14:18    (  26.99, 156.66)  574.68            216
 12/10/2012   02:26:17   (  19.64, 163.88) 12/10/2012   02:27:09    (  18.97, 160.97)  314.31             52
 12/10/2012   04:06:43   (  13.88, 139.75) 12/10/2012   04:07:01    (  13.22, 136.96)  310.73             18
 12/10/2012   15:03:15   (  10.61, 159.49) 12/10/2012   14:59:48    (  11.01, 157.52)  219.32            207
 12/22/2012   03:37:38   (  11.39, 147.47) 12/22/2012   03:40:52    (  10.54, 143.93)  398.43            194
 12/22/2012   16:14:33   (  18.99, 143.11) 12/22/2012   16:13:30    (  19.55, 140.51)  279.77             63
 12/23/2012   03:30:00   (  22.68, 147.46) 12/23/2012   03:26:23    (  26.52, 144.81)  504.71            217
 01/03/2013   15:45:00   (  22.59, 151.18) 01/03/2013   15:47:02    (  23.38, 147.81)  356.38            122
 01/04/2013   03:01:31   (  22.66, 154.62) 01/04/2013   02:59:46    (  22.17, 152.27)  248.43            105