Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 6 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/09/2023   19:14:01   (   0.03, -75.18) (  -0.42, -77.24)  234.11                80
 06/10/2023   18:58:19   (   0.03, -75.18) (   0.58, -72.78)  273.79                80
 06/12/2023   07:18:01   (  -0.03, -75.19) (   0.62, -78.17)  338.83                80
 06/13/2023   07:02:19   (  -0.03, -75.20) (  -0.37, -73.72)  169.42                80
 06/14/2023   19:22:08   (   0.04, -75.21) (  -0.88, -79.12)  447.00                80
 06/15/2023   19:06:26   (   0.04, -75.22) (   0.18, -74.68)   61.60                80
 06/18/2023   07:10:26   (  -0.05, -75.25) (   0.01, -75.62)   41.53                80
 06/19/2023   06:52:04   (  -0.04, -75.26) (  -0.99, -71.17)  467.48                80
 06/20/2023   19:11:53   (   0.05, -75.28) (  -0.24, -76.58)  147.80                80
 06/21/2023   18:56:11   (   0.05, -75.30) (   0.77, -72.12)  361.68                80