Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 6 15.  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,-117.23) 06/25/2018   04:48:26  ( -80.54,-117.38)    3.31                71
 06/25/2018   05:38:12   (  80.53,  50.13) 06/25/2018   05:39:11  (  80.53,  50.01)    2.30                59
 06/25/2018   06:29:16   ( -80.52,-142.69) 06/25/2018   06:29:56  ( -80.54,-142.79)    2.74                40
 06/25/2018   07:20:13   (  80.53,  24.68) 06/25/2018   07:20:41  (  80.54,  24.60)    1.68                28
 06/25/2018   08:11:17   ( -80.53,-168.14) 06/25/2018   08:11:26  ( -80.54,-168.20)    2.31                 9
 06/25/2018   09:02:14   (  80.53,  -0.77) 06/25/2018   09:02:11  (  80.54,  -0.81)    1.17                 3
 06/25/2018   09:53:18   ( -80.53, 166.40) 06/25/2018   09:52:56  ( -80.55, 166.39)    2.12                22
 06/25/2018   10:44:15   (  80.53, -26.22) 06/25/2018   10:43:41  (  80.54, -26.22)    0.93                34
 06/25/2018   11:35:19   ( -80.53, 140.95) 06/25/2018   11:34:26  ( -80.55, 140.98)    2.22                53