Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 10 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/17/2020   18:45:03   (  -0.01, -75.19) (  -0.73, -78.45)  372.03                80
 10/18/2020   18:28:47   (  -0.01, -75.19) (   0.30, -73.87)  150.14                80
 10/20/2020   06:50:15   (   0.01, -75.18) (   0.89, -79.05)  442.30                80
 10/21/2020   06:28:39   (   0.01, -75.18) (  -0.14, -74.47)   79.89                80
 10/23/2020   18:34:01   (  -0.00, -75.19) (  -0.01, -75.12)    8.31                80
 10/26/2020   06:36:33   (   0.00, -75.20) (   0.11, -75.73)   59.90                80
 10/27/2020   06:14:57   (   0.00, -75.21) (  -0.92, -71.15)  463.45                80
 10/28/2020   18:36:35   (  -0.00, -75.24) (  -0.25, -76.37)  129.12                80
 10/29/2020   18:20:19   (  -0.00, -75.25) (   0.79, -71.79)  394.82                80