Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2012 9 8.  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   19:58:39   (  43.34,-104.75) 09/14/2012   20:00:35    (  42.75,-107.49)  232.13            116
 09/15/2012   06:37:03   (  44.01, -67.30) 09/15/2012   06:35:26    (  44.40, -69.50)  180.69             97
 09/15/2012   08:19:36   (  42.39, -93.42) 09/15/2012   08:17:24    (  42.77, -95.47)  173.50            132
 09/15/2012   10:02:16   (  40.37,-119.65) 09/15/2012   09:59:29    (  40.73,-121.56)  166.42            167
 09/15/2012   18:07:40   (  49.95, -79.22) 09/15/2012   18:02:05    (  49.78, -80.15)   69.31            335
 09/15/2012   19:49:46   (  50.00,-104.76) 09/15/2012   19:43:36    (  49.85,-105.55)   59.10            370