Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 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)
 11/27/2021   18:50:12   (  -0.01, -75.20) (  -0.46, -77.08)  214.35                80
 11/28/2021   18:34:32   (  -0.01, -75.20) (   0.57, -72.64)  291.55                80
 11/30/2021   06:56:55   (   0.00, -75.19) (   0.66, -78.04)  325.14                80
 12/01/2021   06:35:55   (   0.01, -75.19) (  -0.34, -73.61)  180.69                80
 12/02/2021   18:58:29   (  -0.01, -75.19) (  -0.87, -79.05)  439.76                80
 12/03/2021   18:42:48   (  -0.01, -75.19) (   0.11, -74.61)   66.05                80
 12/06/2021   06:46:54   (   0.01, -75.19) (   0.07, -75.59)   45.25                80
 12/07/2021   06:25:55   (   0.00, -75.19) (  -0.93, -71.16)  460.36                80
 12/08/2021   18:48:30   (   0.00, -75.20) (  -0.31, -76.61)  160.13                80
 12/09/2021   18:32:51   (   0.00, -75.21) (   0.66, -72.17)  345.95                80
 12/11/2021   06:55:18   (  -0.01, -75.22) (   0.50, -77.59)  269.70                80