Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2012 2 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)
 02/21/2012   06:27:09   (  26.27, -69.43) 02/21/2012   06:22:54    (  26.44, -70.32)   90.89            255
 02/21/2012   08:07:12   (  33.37, -92.97) 02/21/2012   08:02:23    (  33.51, -93.74)   73.79            289
 02/21/2012   09:49:54   (  31.26,-119.10) 02/21/2012   09:44:29    (  31.41,-119.72)   61.09            325
 02/21/2012   17:52:10   (  48.42, -75.12) 02/21/2012   17:44:01    (  48.46, -74.85)   21.12            489
 02/21/2012   19:34:43   (  49.99,-101.34) 02/21/2012   19:26:06    (  50.48,-101.11)   57.12            517