Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 8 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/17/2021   06:39:10   (  -0.12, -75.22) (  -0.09, -75.23)    3.79                80
 08/19/2021   18:41:48   (   0.14, -75.20) (  -0.01, -75.86)   74.85                80
 08/20/2021   18:25:31   (   0.14, -75.20) (   1.05, -71.27)  448.28                80
 08/22/2021   06:46:58   (  -0.15, -75.21) (   0.13, -76.44)  140.91                80
 08/23/2021   06:28:01   (  -0.14, -75.21) (  -0.92, -71.86)  382.76                80
 08/24/2021   18:46:55   (   0.15, -75.22) (  -0.29, -77.06)  210.51                80
 08/25/2021   18:30:37   (   0.15, -75.23) (   0.77, -72.47)  313.86                80
 08/27/2021   06:52:05   (  -0.15, -75.25) (   0.42, -77.64)  273.51                80
 08/28/2021   06:30:27   (  -0.15, -75.26) (  -0.65, -73.06)  250.98                80
 08/29/2021   18:52:03   (   0.16, -75.27) (  -0.51, -78.27)  341.51                80
 08/30/2021   18:35:44   (   0.16, -75.29) (   0.50, -73.67)  183.27                80