Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2022 12 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/10/2022   06:56:32   (  -0.01, -75.19) (   0.03, -75.29)   11.84                80
 12/11/2022   06:38:13   (  -0.01, -75.19) (  -1.00, -70.86)  494.53                80
 12/12/2022   19:00:48   (   0.01, -75.20) (  -0.25, -76.30)  125.10                80
 12/13/2022   18:45:10   (   0.01, -75.21) (   0.79, -71.87)  381.54                80
 12/15/2022   07:07:36   (  -0.01, -75.22) (   0.42, -77.27)  233.21                80
 12/16/2022   06:46:37   (  -0.01, -75.23) (  -0.56, -72.83)  273.72                80
 12/17/2022   19:09:12   (   0.01, -75.25) (  -0.69, -78.27)  344.94                80
 12/18/2022   18:53:34   (   0.01, -75.26) (   0.35, -73.84)  162.45                80
 12/20/2022   07:15:59   (  -0.01, -75.29) (   0.91, -79.24)  451.04                80
 12/21/2022   06:55:00   (  -0.00, -75.30) (  -0.14, -74.81)   56.30                80
 12/23/2022   18:59:16   (  -0.01, -75.33) (  -0.11, -75.81)   54.95                80