Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 6 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/27/2022   11:16:39   (   0.04,-137.19) (   0.95,-141.22)  459.05                80
 06/28/2022   10:55:35   (   0.03,-137.19) (  -0.06,-136.77)   48.38                80
 06/30/2022   23:02:17   (  -0.03,-137.17) (  -0.14,-137.72)   61.97                80
 07/01/2022   22:41:12   (  -0.02,-137.17) (   0.87,-133.26)  445.12                80
 07/03/2022   11:06:11   (   0.03,-137.15) (   0.35,-138.64)  169.23                80
 07/04/2022   10:45:06   (   0.02,-137.14) (  -0.66,-134.18)  337.69                80
 07/05/2022   23:10:11   (  -0.03,-137.12) (  -0.61,-139.58)  280.79                80
 07/06/2022   22:49:07   (  -0.03,-137.11) (   0.40,-135.12)  225.82                80
 07/08/2022   11:14:05   (   0.03,-137.08) (   0.81,-140.50)  389.68                80
 07/09/2022   10:53:01   (   0.02,-137.07) (  -0.21,-136.05)  116.23                80