Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 12 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/14/2019   06:41:29   (   0.01, -75.19) (   0.59, -77.69)  284.83                80
 12/15/2019   06:19:53   (   0.00, -75.19) (  -0.44, -73.11)  236.46                80
 12/16/2019   18:41:32   (   0.00, -75.20) (  -0.73, -78.35)  359.33                80
 12/17/2019   18:22:38   (   0.01, -75.21) (   0.35, -73.79)  162.52                80
 12/19/2019   06:46:49   (  -0.01, -75.21) (   0.83, -78.98)  429.75                80
 12/20/2019   06:25:14   (  -0.02, -75.22) (  -0.19, -74.41)   92.41                80
 12/22/2019   18:27:58   (   0.01, -75.25) (   0.05, -75.07)   20.65                80
 12/25/2019   06:33:14   (  -0.00, -75.28) (   0.11, -75.69)   47.36                80
 12/26/2019   06:11:38   (  -0.00, -75.30) (  -0.91, -71.12)  475.57                80
 12/27/2019   18:35:57   (  -0.00, -75.32) (  -0.25, -76.35)  117.96                80