Simultaneous Nadir Overpasses (SNOs) between FY3D and METOP-C
TLE Epoch: 2020 12 1.  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)
 12/14/2020   23:22:23   ( -73.84,   0.73) 12/14/2020   23:23:29  ( -73.79,   3.70)   92.45                66
 12/15/2020   00:13:05   (  73.69, 168.39) 12/15/2020   00:14:13  (  73.62, 170.63)   70.51                68
 12/15/2020   01:03:46   ( -73.54, -23.94) 12/15/2020   01:04:56  ( -73.52, -22.26)   52.97                70
 12/15/2020   01:54:28   (  73.40, 143.71) 12/15/2020   01:55:40  (  73.35, 144.67)   30.91                72