Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2020 9 21.  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)
 10/02/2020   01:08:32   ( -79.13, -47.11) 10/02/2020   01:07:16  ( -79.11, -47.02)    3.14                76
 10/02/2020   01:59:17   (  79.13, 120.23) 10/02/2020   01:58:19  (  79.12, 120.28)    1.66                58
 10/02/2020   02:50:01   ( -79.13, -72.47) 10/02/2020   02:49:16  ( -79.13, -72.38)    2.01                45
 10/02/2020   03:40:46   (  79.13,  94.87) 10/02/2020   03:40:19  (  79.13,  94.91)    1.17                27
 10/02/2020   04:31:30   ( -79.13, -97.83) 10/02/2020   04:31:16  ( -79.14, -97.74)    2.44                14
 10/02/2020   05:22:15   (  79.13,  69.51) 10/02/2020   05:22:19  (  79.15,  69.55)    2.71                 4
 10/02/2020   06:12:59   ( -79.13,-123.19) 10/02/2020   06:13:17  ( -79.13,-123.37)    3.67                18
 10/02/2020   07:03:45   (  79.16,  43.89) 10/02/2020   07:04:20  (  79.13,  43.92)    2.99                35
 10/02/2020   07:54:29   ( -79.16,-148.81) 10/02/2020   07:55:17  ( -79.14,-148.73)    2.52                48
 10/02/2020   08:45:14   (  79.16,  18.53) 10/02/2020   08:46:20  (  79.15,  18.55)    1.13                66