Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 5 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/10/2020   06:38:41   (  -0.01, -75.18) (   0.32, -76.77)  180.45                80
 05/11/2020   06:17:04   (  -0.02, -75.18) (  -0.68, -72.19)  341.13                80
 05/12/2020   18:38:43   (   0.01, -75.19) (  -0.47, -77.42)  253.66                80
 05/13/2020   18:22:27   (   0.01, -75.19) (   0.53, -72.84)  268.63                80
 05/15/2020   06:43:57   (  -0.01, -75.20) (   0.63, -78.03)  323.16                80
 05/16/2020   06:22:21   (  -0.01, -75.20) (  -0.37, -73.45)  199.43                80
 05/17/2020   18:44:00   (   0.00, -75.22) (  -0.78, -78.68)  394.32                80
 05/18/2020   18:27:45   (   0.00, -75.24) (   0.28, -74.11)  128.88                80
 05/20/2020   06:49:15   (  -0.00, -75.25) (   0.88, -79.30)  461.36                80
 05/21/2020   06:27:38   (  -0.00, -75.26) (  -0.12, -74.72)   61.85                80
 05/23/2020   18:30:21   (   0.00, -75.30) (  -0.03, -75.37)    8.20                80