Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 1 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/16/2020   06:13:59   (   0.04, -75.19) (  -0.74, -71.65)  403.80                80
 01/17/2020   18:38:19   (  -0.05, -75.20) (  -0.40, -76.89)  191.85                80
 01/18/2020   18:16:43   (  -0.05, -75.20) (   0.63, -72.31)  330.02                80
 01/20/2020   06:40:54   (   0.06, -75.20) (   0.56, -77.51)  262.13                80
 01/21/2020   06:19:18   (   0.06, -75.21) (  -0.47, -72.93)  259.87                80
 01/22/2020   18:43:37   (  -0.07, -75.22) (  -0.73, -78.16)  335.03                80
 01/23/2020   18:22:02   (  -0.07, -75.23) (   0.29, -73.58)  187.41                80
 01/25/2020   06:46:12   (   0.08, -75.24) (   0.89, -78.78)  403.41                80
 01/26/2020   06:24:37   (   0.07, -75.26) (  -0.14, -74.20)  119.39                80
 01/27/2020   18:48:57   (  -0.08, -75.28) (  -1.01, -79.44)  474.31                80
 01/28/2020   18:27:22   (  -0.08, -75.30) (   0.02, -74.87)   49.02                80