Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2019 5 6.  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   19:26:35   ( -80.15,  29.37) 05/15/2019   19:25:22  ( -80.16,  29.49)    2.56                73
 05/15/2019   20:17:20   (  80.15,-163.29) 05/15/2019   20:16:24  (  80.16,-163.33)    1.39                56
 05/15/2019   21:08:04   ( -80.15,   4.05) 05/15/2019   21:07:23  ( -80.16,   3.95)    2.45                41
 05/15/2019   21:58:50   (  80.17, 171.09) 05/15/2019   21:58:25  (  80.15, 171.12)    1.92                25
 05/15/2019   22:49:34   ( -80.17, -21.58) 05/15/2019   22:49:24  ( -80.16, -21.59)    1.42                10
 05/15/2019   23:40:19   (  80.17, 145.77) 05/15/2019   23:40:25  (  80.17, 145.90)    2.66                 6
 05/16/2019   00:31:03   ( -80.16, -46.89) 05/16/2019   00:31:24  ( -80.18, -46.81)    1.98                21
 05/16/2019   01:21:48   (  80.16, 120.45) 05/16/2019   01:22:26  (  80.17, 120.35)    2.06                38
 05/16/2019   02:12:32   ( -80.16, -72.21) 05/16/2019   02:13:25  ( -80.17, -72.35)    3.08                53