Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2012 11 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)
 11/27/2012   18:32:01   (  47.00, -84.02) 11/27/2012   18:32:53    (  46.47, -86.72)  213.77             52
 11/27/2012   20:14:41   (  49.00,-110.39) 11/27/2012   20:14:58    (  48.49,-112.92)  194.04             17
 11/28/2012   06:53:11   (  38.32, -72.66) 11/28/2012   06:49:48    (  38.72, -74.66)  179.12            203
 11/28/2012   08:35:51   (  36.29, -98.83) 11/28/2012   08:31:53    (  36.67,-100.68)  170.75            238
 11/28/2012   10:18:31   (  34.26,-124.97) 11/28/2012   10:13:58    (  34.63,-126.68)  161.48            273
 11/28/2012   18:22:02   (  49.99, -82.60) 11/28/2012   18:14:50    (  49.84, -83.38)   58.39            432
 11/28/2012   20:04:07   (  49.99,-108.12) 11/28/2012   19:56:20    (  49.85,-108.76)   48.44            467