Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 7 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/10/2023   13:49:38   (  -0.30,-178.08) (  -0.79,-175.88)  250.22                80
 07/12/2023   02:14:53   (   0.33,-179.65) (  -0.07, 178.63)  196.99                80
 07/13/2023   01:53:53   (   0.31, 179.34) (   1.14,-176.97)  421.32                80
 07/14/2023   14:19:01   (  -0.34, 177.79) (  -0.28, 177.57)   24.87                80
 07/16/2023   02:41:36   (   0.37, 176.23) (  -0.56, 172.08)  473.29                80
 07/17/2023   02:20:36   (   0.35, 175.22) (   0.64, 176.49)  144.60                80
 07/18/2023   14:45:44   (  -0.39, 173.67) (   0.20, 171.03)  301.47                80
 07/19/2023   14:24:44   (  -0.36, 172.67) (  -1.01, 175.44)  316.17                80
 07/21/2023   02:49:59   (   0.39, 171.11) (   0.10, 169.95)  132.30                80
 07/22/2023   02:28:59   (   0.37, 170.10) (   1.31, 174.36)  485.68                80
 07/23/2023   14:51:26   (  -0.40, 168.55) (  -0.48, 168.90)   39.71                80