Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 8 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/27/2019   18:42:44   (   0.03, -75.19) (  -0.72, -78.63)  391.80                80
 08/28/2019   18:26:29   (   0.03, -75.19) (   0.27, -74.05)  128.91                80
 08/30/2019   06:48:01   (  -0.03, -75.17) (   0.87, -79.27)  466.15                80
 08/31/2019   06:26:25   (  -0.03, -75.18) (  -0.12, -74.69)   55.01                80
 09/02/2019   18:29:11   (   0.03, -75.20) (   0.02, -75.37)   19.17                80
 09/05/2019   06:34:28   (  -0.04, -75.20) (   0.12, -76.00)   90.88                80
 09/06/2019   06:12:53   (  -0.04, -75.21) (  -0.88, -71.42)  431.04                80
 09/07/2019   18:34:33   (   0.04, -75.23) (  -0.29, -76.67)  163.62                80
 09/08/2019   18:18:18   (   0.05, -75.25) (   0.77, -72.10)  358.69                80