Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 9 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/22/2020   18:21:31   (   0.02, -75.20) (   0.68, -72.21)  340.28                80
 09/24/2020   06:43:00   (  -0.02, -75.19) (   0.49, -77.40)  252.87                80
 09/25/2020   06:21:23   (  -0.03, -75.18) (  -0.54, -72.82)  268.82                80
 09/26/2020   18:43:03   (   0.03, -75.19) (  -0.58, -78.06)  326.55                80
 09/27/2020   18:26:46   (   0.03, -75.19) (   0.44, -73.48)  195.76                80
 09/29/2020   06:48:16   (  -0.04, -75.19) (   0.72, -78.67)  395.67                80
 09/30/2020   06:26:39   (  -0.04, -75.20) (  -0.30, -74.08)  127.14                80
 10/01/2020   18:48:17   (   0.04, -75.21) (  -0.88, -79.31)  466.66                80
 10/02/2020   18:32:01   (   0.04, -75.22) (   0.15, -74.73)   56.64                80
 10/05/2020   06:34:34   (  -0.04, -75.25) (  -0.01, -75.33)   10.01                80