Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2012 6 15.  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   (  49.89, -67.65) 06/21/2012   06:46:38    (  50.39, -70.19)  189.43             61
 06/21/2012   08:27:42   (  49.90, -93.16) 06/21/2012   08:28:08    (  50.38, -95.56)  179.35             26
 06/21/2012   10:09:54   (  49.52,-118.86) 06/21/2012   10:09:46    (  49.91,-121.15)  170.65              8
 06/21/2012   18:17:56   (  50.00, -81.99) 06/21/2012   18:15:00    (  49.76, -83.27)   96.02            176
 06/21/2012   20:00:01   (  49.98,-107.50) 06/21/2012   19:56:30    (  49.77,-108.65)   85.88            211
 06/22/2012   06:42:04   (  24.82, -73.26) 06/22/2012   06:34:52    (  24.96, -73.80)   56.60            432
 06/22/2012   08:25:32   (  20.01,-100.00) 06/22/2012   08:17:45    (  20.09,-100.39)   41.76            467
 06/22/2012   10:07:01   (  22.12,-124.99) 06/22/2012   09:58:58    (  21.07,-125.52)  128.42            483