Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 7 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/10/2020   18:23:39   (  -0.01, -75.20) (   0.48, -72.96)  255.63                80
 07/12/2020   06:45:09   (   0.01, -75.21) (   0.66, -78.16)  335.42                80
 07/13/2020   06:23:33   (   0.01, -75.22) (  -0.35, -73.57)  187.39                80
 07/14/2020   18:45:11   (  -0.01, -75.23) (  -0.84, -78.80)  406.82                80
 07/15/2020   18:28:56   (  -0.00, -75.24) (   0.23, -74.23)  116.14                80
 07/17/2020   06:50:26   (  -0.02, -75.26) (   0.92, -79.42)  474.54                80
 07/18/2020   06:28:49   (  -0.02, -75.27) (  -0.09, -74.84)   48.54                80
 07/20/2020   18:31:32   (   0.01, -75.30) (  -0.01, -75.50)   21.97                80
 07/23/2020   06:36:46   (  -0.01, -75.34) (   0.17, -76.11)   87.83                80