Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 11 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/25/2021   06:48:41   (   0.02, -75.20) (   0.22, -76.08)  100.26                80
 11/26/2021   06:27:40   (   0.02, -75.21) (  -0.77, -71.64)  406.59                80
 11/27/2021   18:50:13   (  -0.01, -75.23) (  -0.42, -77.09)  211.71                80
 11/28/2021   18:34:31   (  -0.01, -75.24) (   0.55, -72.64)  295.54                80
 11/30/2021   06:56:56   (   0.01, -75.25) (   0.63, -78.05)  318.96                80
 12/01/2021   06:35:55   (   0.01, -75.26) (  -0.37, -73.61)  188.19                80
 12/02/2021   18:58:30   (  -0.01, -75.28) (  -0.84, -79.06)  430.29                80
 12/03/2021   18:42:49   (  -0.01, -75.29) (   0.14, -74.62)   76.86                80
 12/06/2021   06:46:54   (   0.01, -75.32) (   0.10, -75.59)   30.91                80