Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 10 8.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-19) NOAA-19 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/13/2018   22:20:49   ( -80.41, -18.65) 10/13/2018   22:22:00  ( -80.42, -18.63)    0.92                71
 10/13/2018   23:11:43   (  80.43, 148.89) 10/13/2018   23:12:45  (  80.41, 148.79)    2.49                62
 10/14/2018   00:02:50   ( -80.41, -44.14) 10/14/2018   00:03:30  ( -80.42, -44.03)    2.35                40
 10/14/2018   00:53:44   (  80.43, 123.39) 10/14/2018   00:54:15  (  80.42, 123.38)    1.35                31
 10/14/2018   01:44:50   ( -80.43, -69.31) 10/14/2018   01:45:00  ( -80.43, -69.44)    2.54                10
 10/14/2018   02:35:45   (  80.43,  97.89) 10/14/2018   02:35:45  (  80.42,  97.97)    1.84                 0
 10/14/2018   03:26:51   ( -80.43, -94.81) 10/14/2018   03:26:30  ( -80.43, -94.85)    0.82                21
 10/14/2018   04:17:46   (  80.43,  72.39) 10/14/2018   04:17:15  (  80.42,  72.57)    3.30                31
 10/14/2018   05:08:52   ( -80.43,-120.31) 10/14/2018   05:08:00  ( -80.43,-120.25)    0.99                52