Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 7 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/18/2023   18:59:49   (  -0.01, -75.20) (   0.55, -72.61)  295.23                80
 07/20/2023   07:22:10   (   0.02, -75.20) (   0.63, -77.99)  318.08                80
 07/21/2023   07:01:07   (   0.02, -75.20) (  -0.34, -73.53)  190.09                80
 07/22/2023   19:23:36   (  -0.02, -75.21) (  -0.86, -78.94)  425.53                80
 07/23/2023   19:05:13   (  -0.02, -75.22) (   0.12, -74.48)   83.07                80
 07/26/2023   07:11:51   (   0.03, -75.23) (   0.07, -75.41)   20.22                80
 07/27/2023   06:50:47   (   0.03, -75.24) (  -0.92, -70.95)  488.57                80
 07/28/2023   19:13:16   (  -0.04, -75.25) (  -0.28, -76.37)  126.45                80
 07/29/2023   18:54:53   (  -0.04, -75.26) (   0.71, -71.91)  382.40                80
 07/31/2023   07:19:53   (   0.05, -75.27) (   0.51, -77.28)  229.24                80