Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 7 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/05/2023   13:43:54   (  -0.29,-172.92) (  -0.10,-173.75)   94.84                80
 07/08/2023   01:45:30   (   0.29,-175.50) (   0.44,-174.83)   76.74                80
 07/09/2023   14:10:37   (  -0.32,-177.07) (   0.43, 179.71)  367.04                80
 07/10/2023   13:49:37   (  -0.29,-178.09) (  -0.77,-175.88)  251.63                80
 07/12/2023   02:14:53   (   0.33,-179.65) (  -0.08, 178.63)  196.49                80
 07/13/2023   01:53:53   (   0.31, 179.33) (   1.12,-176.96)  422.04                80
 07/14/2023   14:19:01   (  -0.34, 177.77) (  -0.32, 177.56)   22.83                80
 07/16/2023   02:41:36   (   0.37, 176.22) (  -0.58, 172.08)  472.00                80
 07/17/2023   02:20:36   (   0.35, 175.21) (   0.62, 176.49)  146.10                80