Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 6 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/15/2023   19:06:25   (   0.03, -75.20) (   0.12, -74.67)   59.94                80
 06/18/2023   07:07:45   (  -0.03, -75.21) (   0.08, -75.60)   45.13                80
 06/19/2023   06:52:03   (  -0.03, -75.22) (  -0.92, -71.15)  463.27                80
 06/20/2023   19:11:53   (   0.03, -75.23) (  -0.26, -76.57)  152.30                80
 06/21/2023   18:56:10   (   0.03, -75.24) (   0.75, -72.12)  356.58                80
 06/23/2023   07:15:53   (  -0.04, -75.26) (   0.45, -77.51)  255.05                80
 06/24/2023   07:00:10   (  -0.03, -75.28) (  -0.56, -73.05)  254.33                80
 06/25/2023   19:20:00   (   0.04, -75.31) (  -0.66, -78.46)  359.84                80
 06/26/2023   19:04:17   (   0.04, -75.33) (   0.34, -74.01)  149.93                80
 06/28/2023   07:23:59   (  -0.04, -75.36) (   0.85, -79.40)  460.65                80