Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 3 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/13/2020   06:37:14   (   0.03, -75.18) (   0.31, -76.54)  155.18                80
 03/14/2020   06:15:38   (   0.03, -75.18) (  -0.67, -71.96)  366.70                80
 03/15/2020   18:37:17   (  -0.03, -75.19) (  -0.49, -77.19)  228.10                80
 03/16/2020   18:21:01   (  -0.03, -75.20) (   0.55, -72.62)  294.19                80
 03/18/2020   06:42:32   (   0.03, -75.20) (   0.64, -77.81)  298.01                80
 03/19/2020   06:20:56   (   0.04, -75.20) (  -0.40, -73.23)  224.54                80
 03/20/2020   18:42:35   (  -0.04, -75.23) (  -0.75, -78.47)  369.24                80
 03/21/2020   18:26:20   (  -0.04, -75.24) (   0.29, -73.90)  153.99                80
 03/23/2020   06:47:50   (   0.04, -75.26) (   0.91, -79.09)  436.60                80
 03/24/2020   06:26:15   (   0.04, -75.27) (  -0.13, -74.51)   86.86                80
 03/26/2020   18:31:38   (  -0.03, -75.33) (  -0.02, -75.16)   18.39                80