Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 3 18.  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)
 03/20/2018   16:56:38   ( -80.62,  59.24) 03/20/2018   16:57:50  ( -80.61,  59.25)    1.26                72
 03/20/2018   17:47:43   (  80.62,-133.54) 03/20/2018   17:48:35  (  80.61,-133.39)    3.15                52
 03/20/2018   18:38:39   ( -80.63,  33.83) 03/20/2018   18:39:20  ( -80.61,  33.85)    1.54                41
 03/20/2018   19:29:44   (  80.63,-158.96) 03/20/2018   19:30:06  (  80.63,-159.13)    3.23                22
 03/20/2018   20:20:40   ( -80.63,   8.42) 03/20/2018   20:20:50  ( -80.62,   8.46)    1.86                10
 03/20/2018   21:11:45   (  80.63, 175.63) 03/20/2018   21:11:36  (  80.63, 175.47)    2.96                 9
 03/20/2018   22:02:41   ( -80.63, -17.00) 03/20/2018   22:02:20  ( -80.62, -16.94)    2.19                21
 03/20/2018   22:53:46   (  80.63, 150.22) 03/20/2018   22:53:06  (  80.64, 150.07)    2.71                40
 03/20/2018   23:44:43   ( -80.62, -42.76) 03/20/2018   23:43:51  ( -80.64, -42.68)    2.44                52