Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP over region 
TLE Epoch: 2013 1 9.  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)
 01/16/2013   02:32:12   (  19.27, 162.63) 01/16/2013   02:33:10    (  18.58, 159.57)  330.98             58
 01/16/2013   15:08:55   (  11.35, 158.35) 01/16/2013   15:05:41    (  11.84, 156.22)  239.02            194
 01/28/2013   03:43:21   (  10.81, 146.30) 01/28/2013   03:46:44    (   9.93, 142.59)  417.49            203
 01/28/2013   14:40:32   (  10.87, 165.42) 01/28/2013   14:40:19    (  11.51, 162.52)  325.14             13
 01/28/2013   16:20:01   (  19.97, 142.08) 01/28/2013   16:19:15    (  20.55, 139.28)  298.87             46
 01/29/2013   03:35:51   (  22.69, 146.15) 01/29/2013   03:32:14    (  25.94, 143.49)  451.71            217