Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 7 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/08/2023   09:24:35   (  -0.02,-104.73) (   0.86,-108.73)  454.94                80
 07/09/2023   09:03:31   (  -0.01,-104.74) (  -0.10,-104.27)   53.08                80
 07/11/2023   21:07:38   (   0.01,-104.72) (  -0.08,-105.23)   58.01                80
 07/12/2023   20:51:55   (   0.01,-104.72) (   0.89,-100.77)  450.33                80
 07/14/2023   09:14:16   (  -0.01,-104.75) (   0.31,-106.15)  159.38                80
 07/15/2023   08:53:14   (  -0.01,-104.75) (  -0.72,-101.70)  348.51                80
 07/16/2023   21:15:42   (   0.00,-104.73) (  -0.54,-107.10)  271.11                80
 07/17/2023   20:59:59   (   0.00,-104.73) (   0.49,-102.66)  237.16                80
 07/19/2023   09:22:20   (  -0.01,-104.77) (   0.76,-108.03)  371.83                80
 07/20/2023   09:01:17   (  -0.01,-104.77) (  -0.28,-103.58)  136.32                80
 07/21/2023   21:23:46   (   0.01,-104.75) (  -0.97,-108.98)  483.39                80