Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 6 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/08/2020   18:29:54   (   0.00, -75.16) (   0.14, -74.57)   67.33                80
 06/11/2020   06:32:27   (  -0.00, -75.16) (   0.03, -75.17)    3.71                80
 06/13/2020   18:32:31   (  -0.00, -75.18) (  -0.13, -75.83)   73.80                80
 06/14/2020   18:16:15   (   0.00, -75.19) (   0.87, -71.25)  449.32                80
 06/16/2020   06:37:44   (  -0.00, -75.21) (   0.30, -76.43)  140.44                80
 06/17/2020   06:16:08   (  -0.00, -75.22) (  -0.76, -71.86)  382.74                80
 06/18/2020   18:37:48   (   0.00, -75.24) (  -0.40, -77.10)  211.21                80
 06/19/2020   18:21:31   (   0.00, -75.26) (   0.61, -72.51)  312.36                80
 06/21/2020   06:43:02   (  -0.00, -75.28) (   0.51, -77.71)  276.57                80