Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 8 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/28/2021   06:30:27   (  -0.13, -75.20) (  -0.62, -73.05)  245.81                80
 08/29/2021   18:52:02   (   0.13, -75.22) (  -0.54, -78.26)  346.51                80
 08/30/2021   18:35:44   (   0.14, -75.22) (   0.46, -73.66)  177.53                80
 09/01/2021   06:57:12   (  -0.14, -75.23) (   0.66, -78.85)  411.37                80
 09/02/2021   06:35:33   (  -0.15, -75.24) (  -0.35, -74.25)  112.67                80
 09/03/2021   18:57:09   (   0.15, -75.26) (  -0.81, -79.46)  479.30                80
 09/04/2021   18:40:51   (   0.15, -75.27) (   0.25, -74.87)   45.22                80
 09/07/2021   06:43:21   (  -0.16, -75.31) (  -0.14, -75.46)   17.72                80
 09/09/2021   18:43:18   (   0.16, -75.35) (  -0.01, -76.08)   83.35                80
 09/10/2021   18:27:00   (   0.16, -75.36) (   1.06, -71.49)  441.95                80