Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2022 12 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/24/2022   18:43:37   (   0.02, -75.20) (   0.91, -71.37)  436.83                80
 12/26/2022   07:03:22   (  -0.02, -75.20) (   0.33, -76.77)  179.03                80
 12/27/2022   06:47:43   (  -0.02, -75.20) (  -0.66, -72.33)  327.57                80
 12/28/2022   19:07:38   (   0.03, -75.22) (  -0.57, -77.77)  290.82                80
 12/29/2022   18:51:59   (   0.03, -75.23) (   0.43, -73.33)  216.52                80
 12/31/2022   07:14:25   (  -0.03, -75.25) (   0.75, -78.74)  397.39                80
 01/01/2023   06:53:25   (  -0.02, -75.26) (  -0.25, -74.30)  110.31                80
 01/03/2023   19:00:21   (   0.01, -75.31) (   0.04, -75.30)    3.32                80
 01/06/2023   07:04:27   (   0.01, -75.36) (   0.20, -76.26)  103.18                80