Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 9 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)
 09/09/2020   06:24:36   (  -0.04, -75.17) (  -0.38, -73.65)  172.98                80
 09/10/2020   18:46:14   (   0.05, -75.18) (  -0.77, -78.88)  421.42                80
 09/11/2020   18:29:58   (   0.05, -75.18) (   0.25, -74.30)  100.76                80
 09/13/2020   06:51:28   (  -0.06, -75.18) (   0.89, -79.50)  491.95                80
 09/14/2020   06:29:51   (  -0.06, -75.18) (  -0.14, -74.92)   30.43                80
 09/16/2020   18:32:33   (   0.06, -75.20) (  -0.01, -75.56)   40.70                80
 09/17/2020   18:16:17   (   0.06, -75.21) (   1.02, -70.98)  482.32                80
 09/19/2020   06:37:46   (  -0.06, -75.21) (   0.17, -76.16)  108.92                80
 09/20/2020   06:16:10   (  -0.06, -75.22) (  -0.85, -71.58)  414.30                80
 09/21/2020   18:37:48   (   0.06, -75.25) (  -0.31, -76.81)  178.56                80
 09/22/2020   18:21:32   (   0.07, -75.26) (   0.77, -72.24)  344.89                80