Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 7 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/12/2023   19:10:08   (   0.01, -75.20) (  -0.01, -75.19)    2.89                80
 07/15/2023   07:14:07   (  -0.01, -75.21) (   0.19, -76.12)  103.53                80
 07/16/2023   06:53:03   (  -0.01, -75.21) (  -0.78, -71.66)  404.77                80
 07/17/2023   19:15:33   (   0.01, -75.22) (  -0.42, -77.07)  210.67                80
 07/18/2023   18:59:50   (   0.01, -75.23) (   0.62, -72.62)  298.09                80
 07/20/2023   07:22:11   (  -0.01, -75.25) (   0.63, -77.99)  313.51                80
 07/21/2023   07:01:08   (  -0.01, -75.26) (  -0.40, -73.55)  195.71                80
 07/22/2023   19:23:37   (   0.01, -75.28) (  -0.79, -78.96)  418.42                80
 07/23/2023   19:07:54   (   0.01, -75.30) (   0.18, -74.50)   91.27                80