Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 1 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)
 01/19/2023   19:04:23   (   0.05, -75.19) (  -0.30, -76.73)  175.36                80
 01/20/2023   18:48:43   (   0.04, -75.19) (   0.67, -72.28)  331.12                80
 01/22/2023   07:11:08   (  -0.04, -75.19) (   0.54, -77.68)  284.65                80
 01/23/2023   06:50:08   (  -0.04, -75.19) (  -0.50, -73.25)  222.10                80
 01/24/2023   19:12:42   (   0.04, -75.21) (  -0.75, -78.68)  395.55                80
 01/25/2023   18:57:02   (   0.04, -75.22) (   0.29, -74.24)  111.98                80
 01/28/2023   06:58:27   (  -0.04, -75.25) (  -0.07, -75.20)    6.30                80
 01/30/2023   19:02:40   (   0.03, -75.29) (  -0.17, -76.19)  101.85                80
 01/31/2023   18:46:59   (   0.03, -75.31) (   0.83, -71.75)  406.58                80