Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 3 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/13/2020   06:37:14   (   0.03, -75.18) (   0.33, -76.54)  155.04                80
 03/14/2020   06:15:38   (   0.03, -75.18) (  -0.71, -71.97)  366.82                80
 03/15/2020   18:37:17   (  -0.03, -75.19) (  -0.45, -77.20)  228.15                80
 03/16/2020   18:21:01   (  -0.03, -75.20) (   0.53, -72.61)  294.17                80
 03/18/2020   06:42:32   (   0.03, -75.20) (   0.60, -77.82)  297.89                80
 03/19/2020   06:20:56   (   0.04, -75.21) (  -0.38, -73.23)  224.69                80
 03/20/2020   18:42:35   (  -0.03, -75.23) (  -0.78, -78.46)  369.25                80
 03/21/2020   18:26:20   (  -0.04, -75.24) (   0.27, -73.89)  153.96                80
 03/23/2020   06:47:51   (   0.03, -75.26) (   0.87, -79.09)  436.46                80
 03/24/2020   06:26:14   (   0.04, -75.28) (  -0.11, -74.51)   87.06                80