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

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/09/2019   06:32:07   (  -0.01, -75.21) (   0.01, -75.37)   17.55                80
 07/11/2019   18:32:12   (   0.01, -75.23) (  -0.15, -76.04)   91.61                80
 07/12/2019   18:15:57   (   0.01, -75.24) (   0.84, -71.46)  430.64                80
 07/14/2019   06:37:29   (  -0.02, -75.26) (   0.32, -76.67)  160.87                80
 07/15/2019   06:15:55   (  -0.01, -75.28) (  -0.73, -72.11)  361.66                80
 07/16/2019   18:37:35   (   0.01, -75.30) (  -0.44, -77.35)  233.29                80
 07/17/2019   18:21:21   (   0.01, -75.32) (   0.61, -72.78)  289.76                80
 07/19/2019   06:40:13   (  -0.01, -75.35) (   0.57, -77.99)  300.49                80
 07/20/2019   06:23:57   (  -0.01, -75.37) (  -0.42, -73.41)  222.98                80