Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2012 9 6.  Predictions up to the next  10.0 days:

Date(NOAA-19)     Time(NOAA-19)   NOAA-19 Lat/Lon   Date(NPP)     Time(NPP)    NPP Lat/Lon    Distance (km)   Time Diff(sec)
 09/14/2012   19:58:36   (  43.25,-104.71) 09/14/2012   20:00:33    (  42.68,-107.46)  232.54            117
 09/15/2012   06:37:00   (  44.03, -67.29) 09/15/2012   06:35:23    (  44.46, -69.47)  180.60             97
 09/15/2012   08:19:34   (  42.36, -93.42) 09/15/2012   08:17:22    (  42.77, -95.47)  173.59            132
 09/15/2012   10:02:14   (  40.34,-119.65) 09/15/2012   09:59:27    (  40.73,-121.55)  166.53            167
 09/15/2012   18:07:38   (  49.99, -79.23) 09/15/2012   18:02:04    (  49.85, -80.17)   69.44            334
 09/15/2012   19:49:43   (  49.99,-104.75) 09/15/2012   19:43:34    (  49.86,-105.55)   59.30            369