Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 3 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/02/2021   06:40:57   (  -0.04, -75.21) (   0.10, -75.97)   85.71                80
 04/03/2021   06:19:19   (  -0.04, -75.20) (  -0.92, -71.38)  436.74                80
 04/04/2021   18:40:56   (   0.03, -75.20) (  -0.25, -76.59)  157.61                80
 04/05/2021   18:24:38   (   0.03, -75.20) (   0.77, -72.00)  365.54                80
 04/07/2021   06:46:06   (  -0.02, -75.21) (   0.40, -77.18)  223.90                80
 04/08/2021   06:24:29   (  -0.02, -75.22) (  -0.62, -72.59)  299.52                80
 04/09/2021   18:46:05   (   0.01, -75.22) (  -0.54, -77.80)  293.50                80
 04/10/2021   18:29:48   (   0.01, -75.24) (   0.49, -73.22)  230.67                80
 04/12/2021   06:51:16   (  -0.01, -75.26) (   0.69, -78.39)  357.04                80
 04/13/2021   06:29:39   (  -0.02, -75.27) (  -0.34, -73.81)  167.13                80