Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 3 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)
 03/27/2021   06:54:43   (  -0.04, -75.23) (   0.91, -79.32)  467.67                80
 03/28/2021   06:33:07   (  -0.04, -75.23) (  -0.17, -74.75)   55.80                80
 03/30/2021   18:35:46   (   0.04, -75.25) (   0.01, -75.37)   13.88                80
 04/02/2021   06:40:56   (  -0.04, -75.28) (   0.13, -75.96)   78.07                80
 04/03/2021   06:19:19   (  -0.04, -75.29) (  -0.89, -71.37)  445.79                80
 04/04/2021   18:40:55   (   0.03, -75.30) (  -0.28, -76.58)  147.01                80
 04/05/2021   18:24:38   (   0.03, -75.31) (   0.74, -72.00)  377.60                80
 04/07/2021   06:46:07   (  -0.02, -75.35) (   0.37, -77.19)  208.89                80
 04/08/2021   06:24:30   (  -0.02, -75.37) (  -0.65, -72.60)  315.97                80
 04/09/2021   18:46:06   (   0.01, -75.39) (  -0.51, -77.81)  275.51                80