Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 9 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/28/2021   06:44:46   (  -0.10, -75.19) (  -0.02, -75.63)   48.86                80
 09/29/2021   06:23:08   (  -0.11, -75.20) (  -1.03, -71.03)  474.51                80
 09/30/2021   18:47:23   (   0.10, -75.21) (  -0.15, -76.23)  117.58                80
 10/01/2021   18:25:45   (   0.11, -75.21) (   0.92, -71.65)  406.27                80
 10/03/2021   06:49:52   (  -0.11, -75.22) (   0.27, -76.82)  182.61                80
 10/04/2021   06:28:14   (  -0.11, -75.23) (  -0.80, -72.24)  341.43                80
 10/05/2021   18:52:30   (   0.10, -75.25) (  -0.38, -77.44)  249.72                80
 10/06/2021   18:30:51   (   0.11, -75.26) (   0.63, -72.84)  274.86                80
 10/08/2021   06:54:58   (  -0.10, -75.27) (   0.49, -78.02)  312.73                80
 10/09/2021   06:33:20   (  -0.10, -75.28) (  -0.52, -73.43)  211.73                80
 10/10/2021   18:57:35   (   0.09, -75.31) (  -0.67, -78.63)  379.26                80