Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 1 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/15/2020   06:35:34   (   0.05, -75.19) (   0.28, -76.22)  117.29                80
 01/16/2020   06:13:59   (   0.04, -75.19) (  -0.75, -71.65)  404.06                80
 01/17/2020   18:38:18   (  -0.05, -75.20) (  -0.45, -76.88)  191.97                80
 01/18/2020   18:16:43   (  -0.05, -75.20) (   0.58, -72.30)  329.87                80
 01/20/2020   06:40:54   (   0.06, -75.21) (   0.55, -77.51)  261.77                80
 01/21/2020   06:19:17   (   0.06, -75.21) (  -0.42, -72.92)  260.24                80
 01/22/2020   18:43:38   (  -0.07, -75.22) (  -0.72, -78.16)  335.08                80
 01/23/2020   18:22:02   (  -0.07, -75.23) (   0.31, -73.59)  187.36                80
 01/25/2020   06:46:12   (   0.08, -75.25) (   0.87, -78.78)  402.93                80
 01/26/2020   06:24:37   (   0.08, -75.26) (  -0.16, -74.21)  119.82                80
 01/27/2020   18:48:56   (  -0.09, -75.28) (  -1.04, -79.44)  474.27                80