Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 2 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/25/2021   06:21:00   (  -0.03, -75.20) (  -0.74, -72.00)  365.20                80
 02/26/2021   18:42:37   (   0.01, -75.21) (  -0.45, -77.21)  228.28                80
 02/27/2021   18:26:20   (   0.01, -75.22) (   0.57, -72.62)  295.69                80
 03/01/2021   06:47:48   (  -0.01, -75.24) (   0.57, -77.81)  292.14                80
 03/02/2021   06:26:10   (  -0.01, -75.26) (  -0.45, -73.22)  231.66                80
 03/03/2021   18:47:48   (   0.01, -75.27) (  -0.73, -78.43)  361.76                80
 03/04/2021   18:31:31   (   0.01, -75.28) (   0.35, -73.86)  162.57                80
 03/06/2021   06:52:58   (  -0.01, -75.31) (   0.85, -79.03)  424.17                80
 03/07/2021   06:31:22   (  -0.00, -75.33) (  -0.22, -74.45)  100.19                80
 03/08/2021   18:52:58   (  -0.00, -75.34) (  -1.00, -79.66)  492.80                80
 03/09/2021   18:36:42   (  -0.00, -75.36) (   0.08, -75.08)   32.15                80