Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2012 1 21.  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)
 01/27/2012   07:24:14   (  49.90, -77.50) 01/27/2012   07:25:46    (  50.32, -79.74)  166.78             92
 01/27/2012   09:06:19   (  49.92,-103.01) 01/27/2012   09:07:16    (  50.32,-105.12)  156.61             57
 01/27/2012   18:56:37   (  49.97, -91.82) 01/27/2012   18:54:08    (  49.77, -92.78)   72.50            149
 01/27/2012   20:38:42   (  49.94,-117.33) 01/27/2012   20:35:38    (  49.78,-118.16)   62.32            184
 01/28/2012   07:22:07   (  20.04, -84.33) 01/28/2012   07:15:25    (  20.07, -84.55)   22.79            402
 01/28/2012   09:04:13   (  20.01,-109.86) 01/28/2012   08:56:56    (  20.00,-109.94)    8.11            437