Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 6 20.  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)
 06/25/2018   04:47:15   ( -80.52,-117.27) 06/25/2018   04:48:25  ( -80.52,-117.11)    2.98                70
 06/25/2018   05:38:12   (  80.53,  50.12) 06/25/2018   05:39:11  (  80.54,  49.98)    2.85                59
 06/25/2018   06:29:15   ( -80.54,-142.38) 06/25/2018   06:29:55  ( -80.52,-142.52)    3.03                40
 06/25/2018   07:20:13   (  80.53,  24.67) 06/25/2018   07:20:41  (  80.54,  24.57)    2.25                28
 06/25/2018   08:11:16   ( -80.54,-167.84) 06/25/2018   08:11:25  ( -80.53,-167.93)    2.36                 9
 06/25/2018   09:02:14   (  80.53,  -0.78) 06/25/2018   09:02:11  (  80.54,  -0.84)    1.71                 3
 06/25/2018   09:53:17   ( -80.54, 166.71) 06/25/2018   09:52:55  ( -80.53, 166.66)    1.82                22
 06/25/2018   10:44:15   (  80.53, -26.22) 06/25/2018   10:43:41  (  80.54, -26.25)    1.32                34
 06/25/2018   11:35:18   ( -80.54, 141.26) 06/25/2018   11:34:25  ( -80.53, 141.25)    1.51                53