Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 7 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/11/2019   18:32:12   (   0.01, -75.19) (  -0.17, -76.04)   95.71                80
 07/12/2019   18:15:58   (   0.01, -75.20) (   0.88, -71.47)  425.70                80
 07/14/2019   06:37:30   (  -0.02, -75.21) (   0.29, -76.68)  166.74                80
 07/15/2019   06:15:54   (  -0.01, -75.22) (  -0.70, -72.10)  354.96                80
 07/16/2019   18:37:35   (   0.01, -75.22) (  -0.47, -77.34)  241.57                80
 07/17/2019   18:21:20   (   0.01, -75.23) (   0.57, -72.77)  280.62                80
 07/19/2019   06:42:53   (  -0.01, -75.26) (   0.60, -77.98)  310.52                80
 07/20/2019   06:23:58   (  -0.01, -75.27) (  -0.44, -73.42)  212.12                80
 07/21/2019   18:42:58   (   0.01, -75.29) (  -0.72, -78.66)  383.07                80
 07/22/2019   18:26:43   (   0.00, -75.31) (   0.27, -74.08)  140.02                80