Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 12 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/17/2019   18:25:18   (  -0.00, -75.19) (   0.34, -73.78)  161.71                80
 12/19/2019   06:46:49   (  -0.00, -75.19) (   0.84, -78.98)  432.09                80
 12/20/2019   06:25:14   (  -0.01, -75.19) (  -0.19, -74.41)   89.28                80
 12/22/2019   18:27:57   (  -0.00, -75.20) (   0.05, -75.07)   15.83                80
 12/25/2019   06:33:13   (   0.01, -75.21) (   0.10, -75.69)   54.48                80
 12/26/2019   06:11:38   (   0.01, -75.22) (  -0.92, -71.12)  467.61                80
 12/27/2019   18:35:57   (  -0.01, -75.23) (  -0.24, -76.35)  127.07                80
 12/28/2019   18:14:22   (  -0.00, -75.24) (   0.78, -71.78)  395.51                80
 12/30/2019   06:38:33   (   0.00, -75.26) (   0.39, -76.98)  195.42                80