Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2012 6 12.  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)
 06/21/2012   06:45:37   (  49.90, -67.64) 06/21/2012   06:46:37    (  50.41, -70.17)  189.15             60
 06/21/2012   08:27:42   (  49.91, -93.16) 06/21/2012   08:28:07    (  50.40, -95.55)  179.07             25
 06/21/2012   10:09:55   (  49.46,-118.88) 06/21/2012   10:09:46    (  49.87,-121.17)  170.50              9
 06/21/2012   18:17:55   (  49.99, -81.99) 06/21/2012   18:14:58    (  49.75, -83.27)   95.79            177
 06/21/2012   20:00:00   (  49.98,-107.50) 06/21/2012   19:56:28    (  49.76,-108.65)   85.65            212
 06/22/2012   06:42:05   (  24.76, -73.27) 06/22/2012   06:34:52    (  24.91, -73.81)   56.17            433
 06/22/2012   08:25:32   (  20.01,-100.00) 06/22/2012   08:17:44    (  20.09,-100.39)   41.30            468