Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 10 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/01/2020   18:48:17   (   0.02, -75.22) (  -0.90, -79.30)  465.29                80
 10/02/2020   18:32:00   (   0.02, -75.24) (   0.12, -74.72)   59.27                80
 10/05/2020   06:34:33   (  -0.02, -75.28) (  -0.00, -75.33)    5.19                80
 10/07/2020   18:34:35   (   0.02, -75.35) (  -0.15, -75.97)   70.98                80
 10/08/2020   18:18:19   (   0.01, -75.38) (   0.94, -71.40)  454.02                80
 10/10/2020   06:39:48   (  -0.02, -75.40) (   0.26, -76.58)  134.50                80
 10/11/2020   06:18:11   (  -0.02, -75.43) (  -0.76, -72.00)  390.45                80
 10/12/2020   18:39:51   (   0.02, -75.48) (  -0.36, -77.23)  199.66                80
 10/13/2020   18:23:34   (   0.02, -75.51) (   0.67, -72.65)  325.82                80