Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 7 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/25/2020   18:36:47   (   0.02, -75.20) (  -0.32, -76.74)  175.84                80
 07/26/2020   18:20:31   (   0.02, -75.20) (   0.69, -72.16)  346.42                80
 07/28/2020   06:39:21   (  -0.03, -75.20) (   0.46, -77.35)  245.28                80
 07/29/2020   06:23:04   (  -0.02, -75.20) (  -0.55, -72.77)  277.08                80
 07/30/2020   18:42:03   (   0.03, -75.21) (  -0.61, -77.99)  318.08                80
 07/31/2020   18:25:47   (   0.03, -75.21) (   0.46, -73.43)  204.63                80
 08/02/2020   06:44:38   (  -0.04, -75.23) (   0.70, -78.62)  386.23                80
 08/03/2020   06:28:21   (  -0.04, -75.24) (  -0.31, -74.04)  136.85                80
 08/04/2020   18:47:19   (   0.04, -75.25) (  -0.84, -79.26)  457.00                80
 08/05/2020   18:31:03   (   0.04, -75.27) (   0.18, -74.68)   66.75                80