Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 8 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/27/2021   06:52:04   (  -0.14, -75.20) (   0.44, -77.64)  277.85                80
 08/28/2021   06:30:27   (  -0.13, -75.21) (  -0.62, -73.05)  245.74                80
 08/29/2021   18:52:02   (   0.14, -75.21) (  -0.54, -78.26)  347.05                80
 08/30/2021   18:35:44   (   0.14, -75.22) (   0.46, -73.66)  176.85                80
 09/01/2021   06:57:12   (  -0.15, -75.23) (   0.66, -78.85)  412.05                80
 09/02/2021   06:35:35   (  -0.15, -75.24) (  -0.40, -74.26)  111.86                80
 09/03/2021   18:57:09   (   0.16, -75.25) (  -0.82, -79.46)  480.62                80
 09/04/2021   18:40:51   (   0.16, -75.26) (   0.24, -74.87)   43.73                80
 09/07/2021   06:43:21   (  -0.16, -75.29) (  -0.12, -75.46)   19.27                80