Simultaneous Nadir Overpasses (SNOs) between FY3D and METOP-C
TLE Epoch: 2023 10 6.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(METOP-C) METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 10/20/2023   01:54:43   (  75.69, 147.32) 10/20/2023   01:55:50  (  75.65, 149.97)   72.94                67
 10/20/2023   02:45:26   ( -75.57, -44.98) 10/20/2023   02:46:35  ( -75.54, -43.05)   53.69                69