Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 8 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/23/2021   06:25:20   (  -0.13, -75.20) (  -0.88, -71.85)  382.23                80
 08/24/2021   18:46:55   (   0.14, -75.21) (  -0.29, -77.06)  210.70                80
 08/25/2021   18:30:38   (   0.14, -75.22) (   0.77, -72.47)  313.46                80
 08/27/2021   06:52:05   (  -0.14, -75.24) (   0.41, -77.64)  274.73                80
 08/28/2021   06:30:27   (  -0.14, -75.24) (  -0.65, -73.06)  249.51                80
 08/29/2021   18:52:03   (   0.15, -75.26) (  -0.51, -78.27)  342.79                80
 08/30/2021   18:35:44   (   0.15, -75.27) (   0.50, -73.67)  181.78                80
 09/01/2021   06:57:13   (  -0.15, -75.29) (   0.63, -78.86)  405.56                80
 09/02/2021   06:35:34   (  -0.16, -75.31) (  -0.38, -74.26)  118.98                80
 09/03/2021   18:57:09   (   0.16, -75.32) (  -0.78, -79.47)  472.96                80
 09/04/2021   18:40:52   (   0.17, -75.34) (   0.28, -74.88)   52.09                80