Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 11 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/06/2021   18:42:21   (  -0.00, -75.25) (  -0.03, -75.35)   10.89                80
 11/09/2021   06:47:28   (   0.02, -75.25) (   0.18, -75.91)   75.38                80
 11/10/2021   06:25:50   (   0.02, -75.26) (  -0.85, -71.32)  448.77                80
 11/11/2021   18:47:25   (  -0.02, -75.27) (  -0.32, -76.52)  143.06                80
 11/12/2021   18:31:07   (  -0.02, -75.28) (   0.72, -71.93)  381.72                80
 11/14/2021   06:52:33   (   0.02, -75.30) (   0.41, -77.10)  205.01                80
 11/15/2021   06:30:54   (   0.02, -75.32) (  -0.63, -72.51)  320.28                80
 11/16/2021   18:52:29   (  -0.03, -75.34) (  -0.58, -77.70)  269.90                80
 11/17/2021   18:36:10   (  -0.03, -75.36) (   0.46, -73.11)  255.86                80