Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 3 1.  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)
 03/06/2018   22:13:41   (  80.64, 159.86) 03/06/2018   22:14:56  (  80.63, 159.75)    2.27                75
 03/06/2018   23:04:41   ( -80.63, -33.16) 03/06/2018   23:05:41  ( -80.64, -33.04)    2.32                60
 03/06/2018   23:55:42   (  80.64, 134.45) 03/06/2018   23:56:26  (  80.63, 134.35)    2.31                44
 03/07/2018   00:46:42   ( -80.63, -58.57) 03/07/2018   00:47:11  ( -80.64, -58.43)    2.49                29
 03/07/2018   01:37:43   (  80.65, 109.05) 03/07/2018   01:37:56  (  80.63, 108.96)    2.39                13
 03/07/2018   02:28:43   ( -80.64, -83.98) 03/07/2018   02:28:41  ( -80.64, -83.83)    2.71                 2
 03/07/2018   03:19:45   (  80.64,  83.29) 03/07/2018   03:19:27  (  80.66,  83.22)    2.43                18
 03/07/2018   04:10:43   ( -80.64,-109.39) 03/07/2018   04:10:10  ( -80.64,-109.22)    2.95                33
 03/07/2018   05:01:45   (  80.64,  57.89) 03/07/2018   05:00:56  (  80.66,  57.82)    2.12                49