Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 12 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)
 12/08/2023   07:25:20   (  -0.02, -75.21) (   0.32, -76.62)  162.14                80
 12/09/2023   07:04:14   (  -0.01, -75.21) (  -0.72, -72.16)  348.12                80
 12/10/2023   19:26:36   (   0.01, -75.21) (  -0.54, -77.53)  264.87                80
 12/11/2023   19:10:50   (   0.01, -75.22) (   0.50, -73.06)  245.60                80
 12/13/2023   07:33:04   (  -0.01, -75.22) (   0.69, -78.41)  363.52                80
 12/14/2023   07:11:56   (   0.00, -75.22) (  -0.30, -73.94)  146.82                80
 12/15/2023   19:34:20   (  -0.00, -75.23) (  -0.90, -79.32)  466.23                80
 12/16/2023   19:18:32   (  -0.00, -75.23) (   0.09, -74.84)   44.51                80
 12/19/2023   07:22:19   (   0.00, -75.26) (   0.10, -75.72)   52.25                80
 12/20/2023   07:01:12   (   0.00, -75.27) (  -0.90, -71.24)  459.02                80
 12/21/2023   19:23:35   (  -0.00, -75.29) (  -0.30, -76.63)  152.47                80