Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 8 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/02/2021   06:26:30   (  -0.10, -75.22) (  -0.93, -71.64)  408.66                80
 08/03/2021   18:45:25   (   0.12, -75.24) (  -0.25, -76.84)  183.21                80
 08/04/2021   18:29:07   (   0.11, -75.25) (   0.80, -72.26)  340.92                80
 08/06/2021   06:50:35   (  -0.13, -75.25) (   0.37, -77.43)  248.64                80
 08/07/2021   06:28:57   (  -0.13, -75.26) (  -0.69, -72.85)  275.54                80
 08/08/2021   18:50:33   (   0.14, -75.28) (  -0.49, -78.05)  315.82                80
 08/09/2021   18:34:15   (   0.13, -75.30) (   0.57, -73.47)  208.99                80
 08/11/2021   06:55:42   (  -0.14, -75.32) (   0.61, -78.64)  379.14                80
 08/12/2021   06:34:05   (  -0.14, -75.33) (  -0.45, -74.06)  145.85                80
 08/13/2021   18:55:40   (   0.15, -75.36) (  -0.71, -79.27)  444.70                80
 08/14/2021   18:39:22   (   0.14, -75.38) (   0.29, -74.67)   80.66                80