Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 3 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/07/2021   06:31:21   (  -0.04, -75.19) (  -0.18, -74.44)   85.24                80
 03/09/2021   18:36:41   (   0.03, -75.20) (   0.03, -75.07)   14.45                80
 03/12/2021   06:39:12   (  -0.01, -75.21) (   0.10, -75.66)   52.21                80
 03/13/2021   06:17:34   (  -0.01, -75.21) (  -0.92, -71.07)  471.31                80
 03/14/2021   18:39:12   (   0.01, -75.23) (  -0.24, -76.29)  121.02                80
 03/15/2021   18:22:54   (   0.01, -75.25) (   0.78, -71.70)  403.16                80
 03/17/2021   06:44:22   (  -0.01, -75.27) (   0.36, -76.89)  185.16                80
 03/18/2021   06:22:46   (  -0.01, -75.28) (  -0.71, -72.31)  339.01                80
 03/19/2021   18:44:22   (   0.01, -75.30) (  -0.49, -77.52)  252.84                80
 03/20/2021   18:28:05   (   0.01, -75.32) (   0.53, -72.93)  271.82                80