Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 11 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/27/2020   06:27:22   (   0.02, -75.17) (  -0.26, -74.01)  133.55                80
 11/28/2020   18:48:59   (  -0.01, -75.19) (  -0.91, -79.22)  459.37                80
 11/29/2020   18:32:43   (  -0.01, -75.20) (   0.14, -74.65)   64.14                80
 12/02/2020   06:32:35   (   0.01, -75.22) (   0.04, -75.24)    4.24                80
 12/04/2020   18:35:15   (  -0.01, -75.25) (  -0.16, -75.88)   72.21                80
 12/05/2020   18:18:59   (  -0.00, -75.26) (   0.89, -71.30)  451.61                80
 12/07/2020   06:40:28   (   0.00, -75.28) (   0.28, -76.49)  137.91                80
 12/08/2020   06:18:52   (  -0.00, -75.29) (  -0.76, -71.91)  386.03                80
 12/09/2020   18:40:29   (   0.00, -75.32) (  -0.38, -77.13)  205.64                80
 12/10/2020   18:24:12   (   0.00, -75.34) (   0.61, -72.54)  318.94                80