Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 6 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)
 06/17/2020   06:16:08   (   0.01, -75.19) (  -0.72, -71.85)  379.61                80
 06/18/2020   18:37:47   (  -0.00, -75.20) (  -0.44, -77.08)  215.12                80
 06/19/2020   18:21:31   (   0.00, -75.20) (   0.63, -72.51)  307.33                80
 06/21/2020   06:43:01   (  -0.01, -75.21) (   0.55, -77.70)  284.03                80
 06/22/2020   06:21:24   (  -0.01, -75.21) (  -0.46, -73.12)  238.45                80
 06/23/2020   18:43:04   (   0.01, -75.23) (  -0.69, -78.35)  355.94                80
 06/24/2020   18:26:47   (   0.01, -75.24) (   0.31, -73.77)  167.03                80
 06/26/2020   06:48:17   (  -0.01, -75.25) (   0.80, -78.97)  423.30                80
 06/27/2020   06:26:41   (  -0.01, -75.26) (  -0.20, -74.38)   99.89                80
 06/28/2020   18:48:20   (   0.01, -75.28) (  -0.94, -79.62)  493.50                80
 06/29/2020   18:32:04   (   0.01, -75.30) (   0.07, -75.04)   30.20                80