Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2020 7 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)
 07/25/2020   13:06:28   ( -79.06, 133.75) 07/25/2020   13:05:22  ( -79.06, 130.24)   74.16                66
 07/25/2020   13:57:19   (  79.29, -60.63) 07/25/2020   13:56:10  (  79.29, -60.52)    2.26                69
 07/25/2020   14:48:04   ( -79.30, 106.60) 07/25/2020   14:47:15  ( -79.29, 106.76)    3.25                49
 07/25/2020   15:38:48   (  79.28, -85.99) 07/25/2020   15:38:10  (  79.30, -85.87)    3.34                38
 07/25/2020   16:29:33   ( -79.29,  81.25) 07/25/2020   16:29:16  ( -79.28,  81.13)    2.85                17
 07/25/2020   17:20:17   (  79.28,-111.34) 07/25/2020   17:20:11  (  79.29,-111.49)    3.20                 6
 07/25/2020   18:11:02   ( -79.29,  55.89) 07/25/2020   18:11:16  ( -79.30,  55.78)    2.19                14
 07/25/2020   19:01:47   (  79.31,-136.96) 07/25/2020   19:02:11  (  79.31,-136.84)    2.68                24
 07/25/2020   19:52:31   ( -79.29,  30.53) 07/25/2020   19:53:16  ( -79.31,  30.44)    3.15                45
 07/25/2020   20:43:16   (  79.31,-162.32) 07/25/2020   20:44:11  (  79.32,-162.18)    3.11                55
 07/25/2020   21:34:02   ( -79.36,   4.65) 07/25/2020   21:35:16  ( -79.33,   5.09)    9.45                74