Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 7 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/19/2022   11:11:32   (   0.05,-137.29) (   0.61,-139.78)  283.35                80
 07/20/2022   10:50:27   (   0.05,-137.30) (  -0.41,-135.33)  224.89                80
 07/21/2022   23:15:33   (  -0.05,-137.29) (  -0.83,-140.73)  392.04                80
 07/22/2022   22:54:29   (  -0.04,-137.29) (   0.19,-136.28)  115.78                80
 07/24/2022   11:19:26   (   0.04,-137.29) (   1.04,-141.65)  497.45                80
 07/25/2022   10:58:22   (   0.03,-137.28) (   0.01,-137.19)    9.83                80
 07/27/2022   23:02:24   (  -0.02,-137.25) (  -0.23,-138.14)  101.66                80
 07/28/2022   22:46:39   (  -0.02,-137.24) (   0.79,-133.69)  405.30                80
 07/30/2022   11:08:56   (   0.03,-137.23) (   0.42,-139.06)  208.83                80
 07/31/2022   10:50:31   (   0.02,-137.21) (  -0.55,-134.60)  297.79                80
 08/01/2022   23:10:18   (  -0.02,-137.19) (  -0.63,-140.01)  321.74                80