Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 3 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/17/2021   06:44:23   (  -0.04, -75.22) (   0.32, -76.89)  190.75                80
 03/18/2021   06:22:46   (  -0.04, -75.22) (  -0.70, -72.30)  332.54                80
 03/19/2021   18:44:23   (   0.04, -75.23) (  -0.45, -77.52)  261.21                80
 03/20/2021   18:28:06   (   0.04, -75.24) (   0.57, -72.94)  262.56                80
 03/22/2021   06:49:34   (  -0.03, -75.26) (   0.59, -78.12)  325.62                80
 03/23/2021   06:27:56   (  -0.03, -75.26) (  -0.43, -73.53)  198.10                80
 03/24/2021   18:49:33   (   0.02, -75.27) (  -0.77, -78.74)  395.18                80
 03/25/2021   18:33:15   (   0.02, -75.28) (   0.25, -74.15)  129.15                80
 03/27/2021   06:54:44   (  -0.01, -75.32) (   0.91, -79.33)  457.80                80
 03/28/2021   06:33:07   (  -0.01, -75.33) (  -0.16, -74.75)   66.52                80
 03/30/2021   18:38:26   (   0.02, -75.36) (  -0.00, -75.37)    2.14                80