Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 9 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/14/2020   06:29:51   (  -0.04, -75.17) (  -0.10, -74.90)   30.06                80
 09/16/2020   18:32:33   (   0.04, -75.19) (  -0.04, -75.55)   40.82                80
 09/17/2020   18:16:16   (   0.04, -75.20) (   0.98, -70.97)  482.03                80
 09/19/2020   06:37:45   (  -0.05, -75.20) (   0.20, -76.16)  109.98                80
 09/20/2020   06:16:10   (  -0.04, -75.21) (  -0.88, -71.59)  413.13                80
 09/21/2020   18:37:48   (   0.05, -75.23) (  -0.28, -76.81)  179.42                80
 09/22/2020   18:21:32   (   0.05, -75.25) (   0.74, -72.23)  343.86                80
 09/24/2020   06:43:01   (  -0.05, -75.25) (   0.44, -77.42)  247.40                80
 09/25/2020   06:21:25   (  -0.06, -75.26) (  -0.59, -72.84)  276.03                80
 09/26/2020   18:43:03   (   0.06, -75.30) (  -0.58, -78.06)  315.81                80
 09/27/2020   18:26:47   (   0.06, -75.32) (   0.50, -73.50)  208.29                80