Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 1 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/10/2022   11:04:24   (  -0.04,-137.21) (   0.66,-140.29)  351.00                80
 01/11/2022   10:48:42   (  -0.03,-137.20) (  -0.35,-135.84)  155.39                80
 01/12/2022   23:08:31   (   0.03,-137.19) (  -0.90,-141.26)  465.10                80
 01/13/2022   22:52:48   (   0.02,-137.17) (   0.11,-136.82)   40.99                80
 01/16/2022   10:54:06   (   0.01,-137.15) (   0.17,-137.75)   69.14                80
 01/17/2022   10:38:24   (   0.02,-137.13) (  -0.84,-133.30)  436.29                80
 01/18/2022   22:58:13   (  -0.02,-137.10) (  -0.39,-138.72)  185.82                80
 01/19/2022   22:42:31   (  -0.01,-137.08) (   0.62,-134.28)  319.14                80
 01/21/2022   11:04:52   (   0.01,-137.05) (   0.62,-139.67)  298.23                80
 01/22/2022   10:43:49   (   0.01,-137.03) (  -0.39,-135.22)  206.37                80