Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 6 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/25/2023   19:19:59   (   0.02, -75.20) (  -0.70, -78.45)  370.35                80
 06/26/2023   19:04:16   (   0.02, -75.21) (   0.32, -74.00)  137.96                80
 06/28/2023   07:26:38   (  -0.02, -75.22) (   0.92, -79.38)  474.38                80
 06/29/2023   07:05:35   (  -0.02, -75.23) (  -0.09, -74.93)   33.99                80
 07/01/2023   19:09:42   (   0.03, -75.24) (  -0.10, -75.89)   73.64                80
 07/02/2023   18:53:59   (   0.03, -75.25) (   0.92, -71.44)  434.80                80
 07/04/2023   07:13:41   (  -0.04, -75.26) (   0.30, -76.82)  177.37                80
 07/05/2023   06:57:58   (  -0.04, -75.27) (  -0.72, -72.37)  331.36                80
 07/06/2023   19:17:47   (   0.05, -75.29) (  -0.53, -77.77)  283.77                80
 07/07/2023   19:02:04   (   0.05, -75.30) (   0.49, -73.32)  225.62                80