Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 5 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/17/2021   18:27:58   (   0.02, -75.20) (   0.62, -72.52)  305.57                80
 05/19/2021   06:49:25   (  -0.02, -75.19) (   0.57, -77.69)  285.51                80
 05/20/2021   06:27:47   (  -0.02, -75.19) (  -0.46, -73.10)  236.94                80
 05/21/2021   18:52:04   (   0.02, -75.18) (  -0.70, -78.31)  357.90                80
 05/22/2021   18:30:26   (   0.02, -75.17) (   0.33, -73.73)  164.82                80
 05/24/2021   06:54:34   (  -0.02, -75.17) (   0.79, -78.91)  425.33                80
 05/25/2021   06:32:56   (  -0.02, -75.17) (  -0.18, -74.31)   97.52                80
 05/26/2021   18:57:12   (   0.02, -75.17) (  -0.98, -79.52)  497.00                80
 05/27/2021   18:35:35   (   0.02, -75.17) (   0.05, -74.94)   26.03                80
 05/30/2021   06:40:46   (  -0.02, -75.17) (   0.03, -75.53)   40.45                80