Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 7 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/01/2022   22:41:12   (  -0.03,-137.20) (   0.84,-133.26)  449.03                80
 07/03/2022   11:06:10   (   0.04,-137.20) (   0.38,-138.63)  163.39                80
 07/04/2022   10:45:06   (   0.04,-137.20) (  -0.63,-134.18)  344.59                80
 07/05/2022   23:10:12   (  -0.04,-137.19) (  -0.59,-139.58)  272.58                80
 07/06/2022   22:49:08   (  -0.04,-137.19) (   0.42,-135.13)  235.02                80
 07/08/2022   11:14:06   (   0.04,-137.18) (   0.79,-140.50)  378.54                80
 07/09/2022   10:53:01   (   0.03,-137.17) (  -0.22,-136.05)  128.40                80
 07/10/2022   23:18:08   (  -0.03,-137.15) (  -1.00,-141.46)  490.78                80
 07/11/2022   22:57:03   (  -0.02,-137.14) (   0.01,-137.00)   15.41                80
 07/14/2022   11:03:37   (   0.01,-137.09) (   0.17,-137.92)   94.32                80
 07/15/2022   10:42:32   (   0.00,-137.07) (  -0.79,-133.46)  411.61                80