Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 7 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/01/2023   19:09:41   (   0.02, -75.20) (  -0.13, -75.88)   78.09                80
 07/02/2023   18:53:59   (   0.02, -75.20) (   0.88, -71.43)  429.73                80
 07/04/2023   07:13:40   (  -0.03, -75.21) (   0.34, -76.81)  182.94                80
 07/05/2023   06:57:58   (  -0.02, -75.21) (  -0.67, -72.36)  325.19                80
 07/06/2023   19:17:47   (   0.03, -75.21) (  -0.53, -77.77)  291.30                80
 07/07/2023   19:02:04   (   0.02, -75.22) (   0.43, -73.31)  217.52                80
 07/09/2023   07:21:46   (  -0.02, -75.25) (   0.73, -78.70)  393.48                80
 07/10/2023   07:06:02   (  -0.02, -75.26) (  -0.23, -74.24)  115.77                80
 07/11/2023   19:25:52   (   0.03, -75.27) (  -0.97, -79.65)  499.47                80
 07/12/2023   19:10:09   (   0.03, -75.29) (   0.06, -75.20)   10.05                80