Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 8 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/22/2023   07:15:12   (   0.05, -75.22) (   0.19, -75.83)   68.97                80
 08/23/2023   06:54:08   (   0.05, -75.23) (  -0.82, -71.37)  439.86                80
 08/24/2023   19:16:36   (  -0.05, -75.24) (  -0.42, -76.78)  175.49                80
 08/25/2023   19:00:53   (  -0.04, -75.25) (   0.60, -72.32)  333.38                80
 08/27/2023   07:23:12   (   0.03, -75.26) (   0.58, -77.70)  278.11                80
 08/28/2023   07:02:09   (   0.03, -75.27) (  -0.44, -73.24)  230.77                80
 08/29/2023   19:24:37   (  -0.01, -75.28) (  -0.79, -78.65)  384.35                80
 08/30/2023   19:08:54   (  -0.01, -75.30) (   0.24, -74.20)  125.22                80
 09/01/2023   07:31:13   (   0.00, -75.32) (   0.94, -79.57)  484.54                80
 09/02/2023   07:10:08   (   0.01, -75.33) (  -0.03, -75.11)   25.70                80