Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2012 10 20.  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)
 10/21/2012   18:24:56   (  45.99, -82.04) 10/21/2012   18:26:05    (  45.46, -84.69)  214.32             69
 10/21/2012   20:07:36   (  48.00,-108.39) 10/21/2012   20:08:10    (  47.49,-110.87)  194.72             34
 10/22/2012   06:45:56   (  39.58, -70.66) 10/22/2012   06:42:55    (  39.97, -72.62)  173.50            181
 10/22/2012   08:28:36   (  37.57, -96.84) 10/22/2012   08:25:00    (  37.94, -98.66)  165.39            216
 10/22/2012   10:11:16   (  35.54,-123.00) 10/22/2012   10:07:05    (  35.90,-124.67)  156.36            251
 10/22/2012   18:15:14   (  49.95, -81.01) 10/22/2012   18:08:19    (  49.83, -81.75)   54.63            415
 10/22/2012   19:57:19   (  49.95,-106.53) 10/22/2012   19:49:49    (  49.84,-107.12)   44.55            450