Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 4 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)
 04/09/2023   21:17:33   (   0.00,-104.74) (  -0.92,-108.90)  473.51                80
 04/10/2023   21:01:50   (  -0.00,-104.74) (   0.04,-104.44)   33.91                80
 04/13/2023   09:05:47   (   0.00,-104.72) (   0.17,-105.36)   73.41                80
 04/14/2023   08:44:45   (   0.00,-104.72) (  -0.85,-100.91)  433.55                80
 04/15/2023   21:07:14   (  -0.00,-104.71) (  -0.40,-106.32)  184.47                80
 04/16/2023   20:51:32   (  -0.00,-104.71) (   0.63,-101.87)  323.07                80
 04/18/2023   09:13:52   (   0.00,-104.71) (   0.58,-107.25)  289.94                80
 04/19/2023   08:52:50   (   0.00,-104.71) (  -0.45,-102.80)  217.49                80
 04/20/2023   21:15:19   (   0.00,-104.70) (  -0.79,-108.21)  400.56                80
 04/21/2023   20:59:35   (   0.01,-104.70) (   0.19,-103.75)  107.06                80