Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 3 9.  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,  59.17) 03/20/2018   16:57:50  ( -80.62,  59.16)    0.29                72
 03/20/2018   17:47:43   (  80.62,-133.67) 03/20/2018   17:48:35  (  80.62,-133.54)    2.41                52
 03/20/2018   18:38:39   ( -80.63,  33.75) 03/20/2018   18:39:20  ( -80.62,  33.77)    0.54                41
 03/20/2018   19:29:44   (  80.62,-159.08) 03/20/2018   19:30:05  (  80.62,-158.94)    2.63                21
 03/20/2018   20:20:40   ( -80.63,   8.34) 03/20/2018   20:20:50  ( -80.62,   8.37)    0.88                10
 03/20/2018   21:11:45   (  80.63, 175.51) 03/20/2018   21:11:35  (  80.62, 175.67)    2.86                10
 03/20/2018   22:02:41   ( -80.63, -17.07) 03/20/2018   22:02:20  ( -80.62, -17.03)    1.24                21
 03/20/2018   22:53:46   (  80.63, 150.10) 03/20/2018   22:53:05  (  80.62, 150.27)    3.12                41
 03/20/2018   23:44:42   ( -80.64, -42.49) 03/20/2018   23:43:50  ( -80.63, -42.43)    1.60                52