Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 8 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/22/2021   06:46:58   (  -0.13, -75.23) (   0.14, -76.44)  138.04                80
 08/23/2021   06:25:20   (  -0.13, -75.26) (  -0.91, -71.86)  387.99                80
 08/24/2021   18:46:56   (   0.14, -75.30) (  -0.25, -77.07)  200.47                80
 08/25/2021   18:30:37   (   0.14, -75.34) (   0.75, -72.47)  326.33                80
 08/27/2021   06:52:06   (  -0.14, -75.39) (   0.37, -77.65)  258.29                80
 08/28/2021   06:30:28   (  -0.14, -75.42) (  -0.69, -73.07)  268.54                80
 08/29/2021   18:52:03   (   0.15, -75.47) (  -0.47, -78.28)  319.32                80
 08/30/2021   18:35:45   (   0.15, -75.51) (   0.53, -73.68)  207.89                80
 09/01/2021   06:57:13   (  -0.15, -75.57) (   0.59, -78.86)  375.86                80
 09/02/2021   06:35:36   (  -0.16, -75.61) (  -0.47, -74.28)  151.26                80
 09/03/2021   18:57:11   (   0.16, -75.66) (  -0.68, -79.49)  436.30                80