Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 10 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/08/2020   18:18:18   (   0.00, -75.25) (   0.87, -71.38)  441.33                80
 10/10/2020   06:39:48   (  -0.01, -75.25) (   0.27, -76.57)  150.14                80
 10/11/2020   06:18:11   (  -0.01, -75.27) (  -0.76, -71.99)  373.66                80
 10/12/2020   18:39:50   (   0.01, -75.31) (  -0.43, -77.22)  216.96                80
 10/13/2020   18:23:33   (   0.01, -75.33) (   0.60, -72.63)  307.38                80
 10/15/2020   06:45:02   (  -0.01, -75.34) (   0.54, -77.83)  282.75                80
 10/16/2020   06:23:26   (  -0.01, -75.37) (  -0.49, -73.25)  241.78                80
 10/17/2020   18:45:04   (   0.01, -75.42) (  -0.69, -78.47)  348.05                80
 10/18/2020   18:28:48   (   0.00, -75.44) (   0.34, -73.89)  176.91                80
 10/20/2020   06:50:17   (  -0.01, -75.46) (   0.81, -79.08)  412.20                80
 10/21/2020   06:28:41   (  -0.00, -75.49) (  -0.22, -74.50)  112.66                80