Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 10 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/24/2021   06:51:13   (  -0.02, -75.20) (   0.37, -76.96)  200.68                80
 10/25/2021   06:29:35   (  -0.02, -75.20) (  -0.65, -72.37)  322.96                80
 10/26/2021   18:53:50   (   0.02, -75.21) (  -0.54, -77.57)  269.15                80
 10/27/2021   18:32:13   (   0.02, -75.22) (   0.54, -72.99)  254.86                80
 10/29/2021   06:56:18   (  -0.02, -75.23) (   0.67, -78.14)  333.43                80
 10/30/2021   06:34:41   (  -0.02, -75.23) (  -0.42, -73.56)  190.69                80
 10/31/2021   18:58:56   (   0.01, -75.25) (  -0.77, -78.77)  400.63                80
 11/01/2021   18:37:17   (   0.02, -75.26) (   0.25, -74.17)  124.10                80
 11/03/2021   07:01:24   (  -0.01, -75.28) (   0.90, -79.34)  462.71                80
 11/04/2021   06:39:45   (  -0.01, -75.29) (  -0.13, -74.75)   62.06                80
 11/06/2021   18:45:02   (  -0.00, -75.33) (  -0.03, -75.36)    4.20                80