Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 9 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/28/2021   06:44:46   (  -0.10, -75.19) (  -0.03, -75.63)   49.35                80
 09/29/2021   06:23:08   (  -0.11, -75.19) (  -1.04, -71.03)  473.92                80
 09/30/2021   18:47:23   (   0.10, -75.20) (  -0.14, -76.24)  118.61                80
 10/01/2021   18:25:46   (   0.11, -75.20) (   0.93, -71.65)  405.07                80
 10/03/2021   06:49:52   (  -0.11, -75.21) (   0.26, -76.82)  183.77                80
 10/04/2021   06:28:13   (  -0.11, -75.21) (  -0.75, -72.22)  340.12                80
 10/05/2021   18:52:30   (   0.10, -75.23) (  -0.37, -77.44)  251.53                80
 10/06/2021   18:30:51   (   0.11, -75.24) (   0.64, -72.85)  272.90                80
 10/08/2021   06:54:58   (  -0.10, -75.26) (   0.54, -78.01)  314.63                80
 10/09/2021   06:33:20   (  -0.10, -75.27) (  -0.53, -73.43)  209.69                80