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

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/04/2022   23:03:33   (   0.04,-137.19) (  -0.30,-138.80)  182.86                80
 04/05/2022   22:42:29   (   0.04,-137.18) (   0.70,-134.35)  323.73                80
 04/07/2022   11:07:28   (  -0.03,-137.17) (   0.52,-139.73)  291.07                80
 04/08/2022   10:46:25   (  -0.03,-137.16) (  -0.49,-135.28)  215.11                80
 04/09/2022   23:11:33   (   0.02,-137.13) (  -0.79,-140.68)  405.44                80
 04/10/2022   22:50:30   (   0.02,-137.12) (   0.21,-136.23)  100.46                80
 04/13/2022   10:57:06   (  -0.01,-137.08) (  -0.01,-137.16)    9.81                80
 04/14/2022   10:36:02   (  -0.02,-137.06) (  -1.01,-132.71)  495.75                80
 04/15/2022   22:58:30   (   0.01,-137.02) (  -0.25,-138.12)  125.96                80
 04/16/2022   22:42:47   (   0.02,-137.00) (   0.76,-133.67)  379.06                80