Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 12 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/04/2019   06:28:09   (  -0.00, -75.20) (   0.01, -75.12)    9.04                80
 12/06/2019   18:33:34   (   0.01, -75.20) (  -0.10, -75.79)   66.56                80
 12/07/2019   18:11:58   (   0.01, -75.20) (   0.92, -71.21)  455.33                80
 12/09/2019   06:36:09   (   0.00, -75.21) (   0.27, -76.41)  136.57                80
 12/10/2019   06:14:34   (   0.01, -75.22) (  -0.75, -71.84)  385.51                80
 12/11/2019   18:38:53   (  -0.01, -75.23) (  -0.41, -77.07)  210.04                80
 12/12/2019   18:17:18   (  -0.01, -75.23) (   0.61, -72.50)  311.97                80
 12/14/2019   06:41:29   (   0.01, -75.24) (   0.59, -77.69)  279.92                80
 12/15/2019   06:19:55   (   0.00, -75.25) (  -0.49, -73.13)  242.11                80
 12/16/2019   18:44:13   (  -0.00, -75.26) (  -0.72, -78.35)  353.22                80
 12/17/2019   18:22:38   (   0.01, -75.27) (   0.36, -73.79)  169.21                80