Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 9 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/06/2020   18:24:42   (   0.04, -75.18) (   0.50, -73.04)  243.33                80
 09/08/2020   06:46:12   (  -0.05, -75.16) (   0.64, -78.24)  349.97                80
 09/09/2020   06:24:36   (  -0.05, -75.16) (  -0.38, -73.65)  171.81                80
 09/10/2020   18:46:14   (   0.05, -75.17) (  -0.77, -78.88)  423.36                80
 09/11/2020   18:29:58   (   0.06, -75.17) (   0.25, -74.30)   98.58                80
 09/13/2020   06:51:28   (  -0.06, -75.16) (   0.88, -79.50)  494.12                80
 09/14/2020   06:29:51   (  -0.07, -75.16) (  -0.14, -74.92)   28.02                80
 09/16/2020   18:32:33   (   0.07, -75.17) (   0.00, -75.56)   44.15                80
 09/17/2020   18:16:17   (   0.07, -75.18) (   1.02, -70.98)  478.64                80
 09/19/2020   06:37:46   (  -0.07, -75.18) (   0.16, -76.17)  112.57                80