Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 6 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/13/2020   18:32:31   (  -0.01, -75.18) (  -0.15, -75.82)   73.81                80
 06/14/2020   18:16:14   (  -0.01, -75.19) (   0.86, -71.24)  449.07                80
 06/16/2020   06:37:45   (   0.01, -75.19) (   0.26, -76.44)  141.71                80
 06/17/2020   06:16:08   (   0.00, -75.20) (  -0.75, -71.86)  381.22                80
 06/18/2020   18:37:47   (   0.00, -75.23) (  -0.41, -77.09)  212.41                80
 06/19/2020   18:21:31   (   0.01, -75.24) (   0.60, -72.51)  310.86                80
 06/21/2020   06:43:01   (  -0.01, -75.25) (   0.52, -77.71)  279.18                80
 06/22/2020   06:21:25   (  -0.01, -75.27) (  -0.49, -73.13)  244.11                80
 06/23/2020   18:43:04   (   0.00, -75.29) (  -0.66, -78.36)  349.24                80
 06/24/2020   18:26:48   (   0.00, -75.31) (   0.35, -73.78)  174.52                80
 06/26/2020   06:48:17   (  -0.00, -75.33) (   0.83, -78.96)  414.47                80