Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 12 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/31/2021   18:28:02   (   0.03, -75.19) (   1.04, -70.86)  493.81                80
 01/02/2022   06:47:42   (  -0.03, -75.17) (   0.23, -76.24)  122.01                80
 01/03/2022   06:32:00   (  -0.03, -75.17) (  -0.78, -71.79)  384.86                80
 01/04/2022   18:51:50   (   0.03, -75.18) (  -0.43, -77.22)  233.15                80
 01/05/2022   18:36:07   (   0.03, -75.18) (   0.58, -72.78)  274.28                80
 01/07/2022   06:58:29   (  -0.03, -75.19) (   0.64, -78.17)  339.98                80
 01/08/2022   06:37:26   (  -0.03, -75.20) (  -0.37, -73.73)  167.96                80
 01/09/2022   18:59:56   (   0.03, -75.22) (  -0.88, -79.14)  448.31                80
 01/10/2022   18:44:13   (   0.03, -75.23) (   0.13, -74.70)   60.26                80
 01/13/2022   06:48:12   (  -0.02, -75.26) (   0.08, -75.65)   43.65                80