Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 6 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)
 06/08/2023   06:54:11   (  -0.03, -75.18) (  -0.78, -71.82)  383.48                80
 06/09/2023   19:14:01   (   0.03, -75.18) (  -0.42, -77.24)  234.01                80
 06/10/2023   18:58:19   (   0.03, -75.19) (   0.57, -72.78)  274.01                80
 06/12/2023   07:18:01   (  -0.03, -75.20) (   0.63, -78.17)  338.42                80
 06/13/2023   07:02:18   (  -0.03, -75.21) (  -0.36, -73.71)  169.94                80
 06/14/2023   19:22:09   (   0.04, -75.22) (  -0.83, -79.13)  446.35                80
 06/15/2023   19:06:26   (   0.04, -75.23) (   0.17, -74.68)   62.31                80
 06/18/2023   07:07:46   (  -0.05, -75.26) (   0.03, -75.62)   40.37                80
 06/19/2023   06:52:04   (  -0.05, -75.27) (  -0.98, -71.16)  468.64                80
 06/20/2023   19:11:53   (   0.06, -75.29) (  -0.25, -76.57)  146.53                80
 06/21/2023   18:56:10   (   0.05, -75.31) (   0.75, -72.12)  363.09                80