Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 12 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)
 12/16/2019   18:41:33   (  -0.01, -75.20) (  -0.71, -78.35)  358.51                80
 12/17/2019   18:25:17   (   0.00, -75.21) (   0.32, -73.78)  163.36                80
 12/19/2019   06:46:50   (  -0.01, -75.22) (   0.81, -78.99)  429.08                80
 12/20/2019   06:25:14   (  -0.01, -75.23) (  -0.22, -74.41)   93.28                80
 12/22/2019   18:30:37   (   0.00, -75.26) (   0.02, -75.06)   22.39                80
 12/25/2019   06:33:14   (   0.01, -75.29) (   0.07, -75.70)   45.72                80
 12/26/2019   06:11:38   (   0.00, -75.31) (  -0.96, -71.12)  477.41                80
 12/27/2019   18:35:58   (  -0.00, -75.34) (  -0.21, -76.36)  115.70                80
 12/28/2019   18:14:22   (   0.00, -75.36) (   0.82, -71.78)  407.86                80