Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 5 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/14/2019   18:29:41   (  -0.00, -75.19) (  -0.05, -75.35)   18.49                80
 05/17/2019   06:34:59   (   0.00, -75.20) (   0.16, -76.00)   89.87                80
 05/18/2019   06:13:23   (   0.00, -75.21) (  -0.82, -71.42)  431.71                80
 05/19/2019   18:35:05   (  -0.00, -75.22) (  -0.35, -76.66)  165.00                80
 05/20/2019   18:18:50   (   0.00, -75.23) (   0.69, -72.10)  356.90                80
 05/22/2019   06:40:23   (  -0.01, -75.25) (   0.45, -77.31)  234.82                80
 05/23/2019   06:18:48   (  -0.01, -75.26) (  -0.59, -72.74)  287.25                80
 05/24/2019   18:40:29   (   0.01, -75.28) (  -0.57, -77.99)  308.63                80
 05/25/2019   18:24:14   (   0.02, -75.29) (   0.41, -73.41)  214.07                80