Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 6 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/23/2020   18:43:04   (  -0.00, -75.20) (  -0.69, -78.35)  358.40                80
 06/24/2020   18:26:47   (  -0.00, -75.21) (   0.32, -73.77)  163.96                80
 06/26/2020   06:48:17   (   0.01, -75.21) (   0.85, -78.96)  426.95                80
 06/27/2020   06:26:40   (   0.01, -75.22) (  -0.15, -74.37)   95.74                80
 06/28/2020   18:48:19   (  -0.02, -75.23) (  -1.00, -79.61)  498.58                80
 06/29/2020   18:32:03   (  -0.01, -75.24) (   0.01, -75.02)   24.52                80
 07/02/2020   06:34:37   (  -0.00, -75.27) (   0.10, -75.64)   42.88                80
 07/03/2020   06:13:01   (  -0.01, -75.28) (  -0.97, -71.07)  480.32                80
 07/04/2020   18:34:40   (   0.01, -75.30) (  -0.23, -76.29)  113.09                80
 07/05/2020   18:18:24   (   0.01, -75.32) (   0.84, -71.72)  410.70                80