Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 5 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/30/2021   06:40:45   (  -0.01, -75.20) (   0.05, -75.53)   36.91                80
 05/31/2021   06:19:07   (  -0.01, -75.21) (  -0.99, -70.94)  487.01                80
 06/01/2021   18:40:44   (   0.01, -75.23) (  -0.19, -76.15)  104.64                80
 06/02/2021   18:24:26   (   0.00, -75.24) (   0.85, -71.56)  419.95                80
 06/04/2021   06:45:53   (  -0.01, -75.26) (   0.31, -76.74)  168.25                80
 06/05/2021   06:24:16   (  -0.01, -75.27) (  -0.73, -72.15)  356.65                80
 06/06/2021   18:45:52   (   0.02, -75.31) (  -0.45, -77.36)  234.06                80
 06/07/2021   18:29:35   (   0.01, -75.33) (   0.59, -72.77)  291.18                80
 06/09/2021   06:51:02   (  -0.02, -75.35) (   0.56, -77.95)  296.01                80
 06/10/2021   06:32:05   (  -0.02, -75.37) (  -0.48, -73.36)  229.29                80
 06/11/2021   18:51:01   (   0.03, -75.41) (  -0.70, -78.57)  361.11                80
 06/12/2021   18:34:43   (   0.02, -75.43) (   0.34, -73.99)  164.56                80