Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2013 3 9.  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)
 03/19/2013   07:06:27   (  49.89, -71.85) 03/19/2013   07:06:29    (  50.54, -75.01)  235.97              2
 03/19/2013   08:49:00   (  48.22, -98.11) 03/19/2013   08:48:29    (  48.75,-101.18)  233.74             31
 03/19/2013   10:31:40   (  46.21,-124.46) 03/19/2013   10:30:34    (  46.73,-127.39)  231.66             66
 03/19/2013   18:38:39   (  49.98, -86.24) 03/19/2013   18:34:52    (  49.66, -88.20)  145.18            227