Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 1 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/24/2022   22:50:37   (   0.04,-137.23) (   0.25,-136.21)  115.83                80
 01/26/2022   11:12:59   (  -0.04,-137.22) (   0.93,-141.61)  499.53                80
 01/27/2022   10:51:56   (  -0.04,-137.22) (  -0.02,-137.15)    7.58                80
 01/29/2022   22:56:03   (   0.02,-137.19) (  -0.17,-138.13)  106.49                80
 01/30/2022   22:40:19   (   0.01,-137.18) (   0.79,-133.67)  399.50                80
 02/01/2022   11:02:41   (   0.02,-137.16) (   0.46,-139.06)  216.71                80
 02/02/2022   10:41:38   (   0.01,-137.15) (  -0.56,-134.62)  288.65                80
 02/03/2022   23:04:07   (  -0.00,-137.13) (  -0.64,-140.04)  331.78                80
 02/04/2022   22:48:24   (   0.00,-137.12) (   0.32,-135.59)  173.77                80
 02/06/2022   11:10:46   (  -0.00,-137.09) (   0.87,-140.98)  443.45                80