Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 7 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)
 07/17/2019   18:21:20   (   0.02, -75.19) (   0.57, -72.77)  276.36                80
 07/19/2019   06:42:52   (  -0.02, -75.20) (   0.60, -77.98)  316.55                80
 07/20/2019   06:21:17   (  -0.02, -75.21) (  -0.45, -73.41)  204.97                80
 07/21/2019   18:42:57   (   0.02, -75.21) (  -0.77, -78.64)  391.83                80
 07/22/2019   18:26:42   (   0.02, -75.22) (   0.28, -74.08)  130.20                80
 07/24/2019   06:48:15   (  -0.02, -75.24) (   0.89, -79.28)  461.43                80
 07/25/2019   06:29:20   (  -0.02, -75.25) (  -0.15, -74.72)   60.76                80
 07/27/2019   18:29:25   (   0.03, -75.27) (  -0.00, -75.39)   13.04                80
 07/30/2019   06:32:03   (  -0.03, -75.31) (   0.13, -76.03)   81.96                80