Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 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)
 05/17/2020   18:44:00   (   0.00, -75.21) (  -0.76, -78.68)  395.06                80
 05/18/2020   18:27:44   (   0.01, -75.22) (   0.24, -74.10)  127.75                80
 05/20/2020   06:49:14   (  -0.00, -75.22) (   0.91, -79.29)  463.81                80
 05/21/2020   06:27:37   (  -0.01, -75.23) (  -0.10, -74.71)   59.07                80
 05/23/2020   18:30:21   (   0.01, -75.27) (   0.01, -75.37)   11.18                80
 05/26/2020   06:35:35   (  -0.00, -75.29) (   0.13, -75.99)   78.56                80
 05/27/2020   06:13:59   (  -0.00, -75.30) (  -0.88, -71.40)  444.70                80
 05/28/2020   18:35:38   (   0.00, -75.33) (  -0.27, -76.64)  147.88                80
 05/29/2020   18:19:21   (  -0.00, -75.35) (   0.73, -72.05)  375.93                80