Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 11 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/12/2019   06:47:19   (  -0.00, -75.20) (   0.85, -79.12)  446.79                80
 11/13/2019   06:25:44   (  -0.00, -75.20) (  -0.16, -74.55)   74.56                80
 11/15/2019   18:28:27   (  -0.00, -75.20) (  -0.02, -75.20)    1.52                80
 11/18/2019   06:33:44   (   0.01, -75.21) (   0.12, -75.84)   71.69                80
 11/19/2019   06:12:09   (   0.01, -75.21) (  -0.89, -71.27)  450.05                80
 11/20/2019   18:33:48   (  -0.00, -75.22) (  -0.29, -76.50)  145.64                80
 11/21/2019   18:17:33   (  -0.00, -75.23) (   0.73, -71.92)  376.60                80
 11/23/2019   06:39:05   (   0.01, -75.24) (   0.40, -77.14)  215.03                80
 11/24/2019   06:17:29   (   0.01, -75.25) (  -0.61, -72.56)  307.54                80
 11/25/2019   18:39:09   (  -0.01, -75.27) (  -0.56, -77.79)  286.99                80