Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2013 10 14.  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)
 10/17/2013   19:03:29   (  49.98, -91.07) 10/17/2013   19:02:19    (  49.44, -94.41)  247.30             70
 10/17/2013   20:45:33   (  49.96,-116.58) 10/17/2013   20:43:49    (  49.44,-119.78)  237.46            104
 10/18/2013   18:52:28   (  49.97, -88.31) 10/18/2013   18:43:52    (  51.44, -90.56)  228.43            516