Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 10 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/15/2020   06:42:22   (  -0.01, -75.22) (   0.57, -77.82)  295.57                80
 10/16/2020   06:26:05   (  -0.01, -75.23) (  -0.46, -73.24)  227.61                80
 10/17/2020   18:45:04   (   0.01, -75.26) (  -0.72, -78.46)  365.34                80
 10/18/2020   18:28:47   (   0.00, -75.27) (   0.31, -73.88)  158.14                80
 10/20/2020   06:50:16   (  -0.01, -75.27) (   0.83, -79.07)  432.35                80
 10/21/2020   06:28:40   (  -0.00, -75.28) (  -0.20, -74.49)   91.20                80
 10/23/2020   18:34:02   (   0.00, -75.33) (   0.05, -75.13)   22.76                80
 10/26/2020   06:36:35   (  -0.01, -75.37) (   0.06, -75.74)   42.05                80
 10/27/2020   06:14:58   (  -0.00, -75.39) (  -0.98, -71.16)  482.68                80
 10/28/2020   18:36:36   (   0.01, -75.44) (  -0.19, -76.39)  107.83                80