Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 8 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/04/2020   18:47:19   (   0.05, -75.20) (  -0.85, -79.26)  463.07                80
 08/05/2020   18:31:02   (   0.05, -75.20) (   0.16, -74.68)   59.83                80
 08/08/2020   06:30:56   (  -0.05, -75.23) (  -0.01, -75.29)    7.81                80
 08/10/2020   18:33:38   (   0.05, -75.26) (  -0.12, -75.94)   77.54                80
 08/11/2020   18:17:22   (   0.05, -75.27) (   0.90, -71.35)  446.21                80
 08/13/2020   06:36:13   (  -0.06, -75.30) (   0.21, -76.56)  143.41                80
 08/14/2020   06:19:56   (  -0.06, -75.31) (  -0.81, -71.98)  380.29                80
 08/15/2020   18:38:55   (   0.07, -75.33) (  -0.33, -77.21)  213.00                80
 08/16/2020   18:22:38   (   0.07, -75.35) (   0.69, -72.63)  310.98                80