Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2019 5 11.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 05/15/2019   19:26:34   ( -80.14,  29.52) 05/15/2019   19:25:22  ( -80.16,  29.41)    3.17                72
 05/15/2019   20:17:20   (  80.16,-163.40) 05/15/2019   20:16:24  (  80.15,-163.38)    0.65                56
 05/15/2019   21:08:04   ( -80.16,   3.90) 05/15/2019   21:07:23  ( -80.15,   3.87)    0.79                41
 05/15/2019   21:58:49   (  80.15, 171.28) 05/15/2019   21:58:24  (  80.17, 171.40)    3.29                25
 05/15/2019   22:49:33   ( -80.15, -21.42) 05/15/2019   22:49:23  ( -80.17, -21.35)    2.47                10
 05/15/2019   23:40:18   (  80.15, 145.96) 05/15/2019   23:40:25  (  80.17, 145.86)    3.13                 7
 05/16/2019   00:31:03   ( -80.18, -47.04) 05/16/2019   00:31:24  ( -80.17, -46.89)    3.04                21
 05/16/2019   01:21:48   (  80.17, 120.33) 05/16/2019   01:22:26  (  80.17, 120.31)    0.59                38
 05/16/2019   02:12:32   ( -80.17, -72.36) 05/16/2019   02:13:25  ( -80.17, -72.43)    1.35                53