Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 9 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/19/2023   06:59:55   (   0.05, -75.21) (  -0.72, -71.73)  397.19                80
 09/20/2023   19:19:42   (  -0.05, -75.21) (  -0.51, -77.13)  218.90                80
 09/21/2023   19:03:58   (  -0.05, -75.21) (   0.55, -72.68)  289.64                80
 09/23/2023   07:23:37   (   0.04, -75.21) (   0.66, -78.04)  322.43                80
 09/24/2023   07:07:52   (   0.04, -75.21) (  -0.34, -73.58)  186.10                80
 09/25/2023   19:27:40   (  -0.02, -75.22) (  -0.87, -78.99)  429.64                80
 09/26/2023   19:11:55   (  -0.02, -75.22) (   0.14, -74.53)   79.46                80
 09/29/2023   07:15:49   (   0.02, -75.24) (   0.05, -75.43)   21.41                80
 09/30/2023   06:57:24   (   0.02, -75.25) (  -0.96, -70.97)  488.47                80
 10/01/2023   19:17:11   (  -0.02, -75.27) (  -0.28, -76.37)  125.19                80
 10/02/2023   19:01:26   (  -0.02, -75.28) (   0.74, -71.91)  385.04                80