Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 9 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)
 09/21/2023   19:03:58   (  -0.06, -75.21) (   0.50, -72.67)  289.96                80
 09/23/2023   07:23:36   (   0.05, -75.21) (   0.71, -78.03)  321.98                80
 09/24/2023   07:07:52   (   0.05, -75.21) (  -0.35, -73.58)  186.62                80
 09/25/2023   19:27:40   (  -0.04, -75.22) (  -0.86, -78.99)  429.18                80
 09/26/2023   19:11:55   (  -0.03, -75.22) (   0.15, -74.53)   80.03                80
 09/29/2023   07:15:49   (   0.03, -75.25) (   0.04, -75.43)   20.91                80
 09/30/2023   06:57:25   (   0.03, -75.26) (  -0.97, -70.97)  489.24                80
 10/01/2023   19:17:11   (  -0.03, -75.27) (  -0.27, -76.37)  124.48                80
 10/02/2023   19:01:26   (  -0.03, -75.29) (   0.75, -71.91)  385.80                80
 10/04/2023   07:21:05   (   0.03, -75.31) (   0.45, -77.28)  223.36                80