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

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/17/2021   06:53:32   (  -0.13, -75.21) (   0.47, -77.83)  299.71                80
 09/18/2021   06:31:55   (  -0.14, -75.21) (  -0.59, -73.25)  224.03                80
 09/19/2021   18:53:30   (   0.13, -75.22) (  -0.58, -78.45)  368.63                80
 09/20/2021   18:37:12   (   0.14, -75.23) (   0.43, -73.86)  155.92                80
 09/22/2021   06:58:39   (  -0.13, -75.26) (   0.72, -79.03)  430.60                80
 09/23/2021   06:37:01   (  -0.14, -75.27) (  -0.35, -74.45)   94.24                80
 09/24/2021   19:01:16   (   0.13, -75.29) (  -0.88, -79.64)  497.37                80
 09/25/2021   18:39:38   (   0.14, -75.31) (   0.19, -75.06)   27.77                80
 09/28/2021   06:44:47   (  -0.14, -75.36) (  -0.05, -75.64)   32.70                80
 09/29/2021   06:23:10   (  -0.14, -75.38) (  -1.12, -71.06)  492.53                80