Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 5 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/31/2021   06:19:07   (  -0.01, -75.20) (  -0.96, -70.93)  486.84                80
 06/01/2021   18:40:43   (   0.01, -75.23) (  -0.22, -76.14)  104.85                80
 06/02/2021   18:24:26   (   0.01, -75.24) (   0.82, -71.55)  419.71                80
 06/04/2021   06:45:53   (  -0.01, -75.25) (   0.34, -76.73)  168.67                80
 06/05/2021   06:24:15   (  -0.01, -75.27) (  -0.70, -72.14)  356.15                80
 06/06/2021   18:45:53   (   0.02, -75.30) (  -0.42, -77.36)  234.56                80
 06/07/2021   18:29:34   (   0.02, -75.32) (   0.56, -72.76)  290.63                80
 06/09/2021   06:51:02   (  -0.02, -75.34) (   0.53, -77.95)  296.76                80
 06/10/2021   06:29:24   (  -0.02, -75.36) (  -0.45, -73.35)  228.50                80
 06/11/2021   18:51:01   (   0.03, -75.40) (  -0.67, -78.58)  361.89                80
 06/12/2021   18:34:44   (   0.03, -75.42) (   0.37, -73.99)  163.72                80