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   (   0.00, -75.19) (   0.00, -75.19)    0.75                80
 07/15/2023   07:14:07   (  -0.01, -75.26) (   0.18, -76.12)   97.53                80
 07/16/2023   06:53:05   (  -0.01, -75.28) (  -0.86, -71.67)  412.24                80
 07/17/2023   19:18:13   (   0.01, -75.28) (  -0.40, -77.07)  204.16                80
 07/18/2023   18:59:50   (   0.01, -75.31) (   0.63, -72.63)  306.10                80
 07/20/2023   07:22:12   (  -0.01, -75.37) (   0.56, -78.01)  299.96                80
 07/21/2023   07:01:08   (  -0.01, -75.40) (  -0.41, -73.55)  210.76                80
 07/22/2023   19:26:18   (   0.01, -75.41) (  -0.78, -78.96)  404.31                80
 07/23/2023   19:05:14   (   0.01, -75.44) (   0.19, -74.50)  106.89                80
 07/25/2023   07:30:15   (  -0.01, -75.52) (   0.98, -79.89)  497.85                80
 07/26/2023   07:09:13   (  -0.01, -75.55) (  -0.06, -75.44)   13.75                80