Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 9 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/29/2021   06:23:07   (  -0.10, -75.19) (  -1.01, -71.02)  474.73                80
 09/30/2021   18:44:43   (   0.10, -75.21) (  -0.11, -76.24)  117.21                80
 10/01/2021   18:26:55   (   0.10, -75.21) (   0.90, -71.65)  406.62                10
 10/03/2021   06:49:51   (  -0.10, -75.22) (   0.28, -76.81)  182.45                80
 10/04/2021   06:28:14   (  -0.11, -75.22) (  -0.79, -72.23)  341.59                80
 10/05/2021   18:52:29   (   0.10, -75.24) (  -0.39, -77.43)  249.42                80
 10/06/2021   18:30:51   (   0.10, -75.26) (   0.62, -72.84)  275.17                80
 10/08/2021   06:54:58   (  -0.09, -75.27) (   0.49, -78.02)  312.60                80
 10/09/2021   06:33:20   (  -0.10, -75.28) (  -0.52, -73.42)  211.87                80
 10/10/2021   18:57:35   (   0.09, -75.30) (  -0.66, -78.63)  378.99                80
 10/11/2021   18:35:57   (   0.10, -75.32) (   0.41, -74.04)  145.72                80