Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2013 12 30.  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)
 01/01/2014   18:41:53   (  49.98, -85.05) 01/01/2014   18:38:15    (  49.46, -88.08)  225.62            218
 01/01/2014   20:23:57   (  49.97,-110.56) 01/01/2014   20:19:45    (  49.46,-113.46)  215.79            252
 01/02/2014   07:06:29   (  22.89, -76.69) 01/02/2014   06:58:41    (  23.37, -79.04)  246.84            468
 01/02/2014   08:49:07   (  20.91,-102.70) 01/02/2014   08:40:45    (  21.38,-104.92)  235.39            502