Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 4 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/05/2022   22:42:28   (   0.04,-137.18) (   0.67,-134.34)  323.81                80
 04/07/2022   11:07:28   (  -0.03,-137.17) (   0.54,-139.72)  290.96                80
 04/08/2022   10:46:24   (  -0.03,-137.16) (  -0.46,-135.27)  215.19                80
 04/09/2022   23:11:34   (   0.02,-137.13) (  -0.76,-140.69)  405.31                80
 04/10/2022   22:50:30   (   0.02,-137.12) (   0.25,-136.24)  100.64                80
 04/13/2022   10:57:05   (  -0.01,-137.08) (   0.00,-137.16)    9.48                80
 04/14/2022   10:36:01   (  -0.02,-137.06) (  -1.00,-132.71)  495.95                80
 04/15/2022   23:01:10   (   0.01,-137.02) (  -0.26,-138.12)  125.73                80
 04/16/2022   22:42:46   (   0.02,-137.00) (   0.76,-133.67)  379.32                80
 04/18/2022   11:05:06   (  -0.01,-136.96) (   0.44,-139.05)  237.97                80