Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 10 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)
 10/13/2019   06:12:33   (  -0.01, -75.20) (  -0.85, -71.36)  437.30                80
 10/14/2019   18:34:14   (   0.01, -75.19) (  -0.28, -76.61)  160.70                80
 10/15/2019   18:17:59   (   0.01, -75.19) (   0.73, -72.03)  360.27                80
 10/17/2019   06:39:30   (  -0.01, -75.18) (   0.42, -77.24)  233.21                80
 10/18/2019   06:17:54   (  -0.01, -75.18) (  -0.58, -72.66)  287.73                80
 10/19/2019   18:39:35   (   0.01, -75.18) (  -0.60, -77.90)  310.12                80
 10/20/2019   18:23:19   (   0.01, -75.17) (   0.41, -73.32)  210.92                80
 10/22/2019   06:44:51   (  -0.02, -75.18) (   0.74, -78.53)  382.22                80
 10/23/2019   06:23:15   (  -0.02, -75.18) (  -0.27, -73.95)  139.04                80
 10/24/2019   18:44:55   (   0.02, -75.18) (  -0.90, -79.19)  458.04                80
 10/25/2019   18:28:41   (   0.02, -75.18) (   0.17, -74.63)   63.86                80