Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 9 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/26/2019   06:36:59   (  -0.00, -75.19) (   0.30, -76.62)  162.19                80
 09/27/2019   06:15:24   (  -0.00, -75.19) (  -0.71, -72.04)  359.20                80
 09/28/2019   18:37:04   (   0.00, -75.21) (  -0.49, -77.28)  236.57                80
 09/29/2019   18:20:50   (   0.00, -75.22) (   0.57, -72.71)  285.32                80
 10/01/2019   06:42:21   (  -0.00, -75.22) (   0.58, -77.92)  307.43                80
 10/02/2019   06:20:46   (  -0.00, -75.23) (  -0.42, -73.34)  214.64                80
 10/03/2019   18:42:27   (   0.01, -75.25) (  -0.72, -78.59)  380.38                80
 10/04/2019   18:26:11   (   0.01, -75.26) (   0.29, -74.02)  141.98                80
 10/06/2019   06:47:43   (  -0.02, -75.28) (   0.87, -79.22)  449.86                80
 10/07/2019   06:26:07   (  -0.02, -75.29) (  -0.13, -74.64)   72.89                80
 10/09/2019   18:31:33   (   0.02, -75.34) (   0.01, -75.32)    2.90                80