Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 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)
 04/04/2023   21:09:27   (  -0.01,-104.75) (  -0.49,-107.01)  256.99                80
 04/05/2023   20:53:45   (  -0.01,-104.75) (   0.52,-102.56)  250.44                80
 04/07/2023   09:16:05   (   0.01,-104.75) (   0.73,-107.93)  363.00                80
 04/08/2023   08:55:03   (   0.01,-104.74) (  -0.28,-103.48)  144.03                80
 04/09/2023   21:17:32   (  -0.02,-104.73) (  -0.97,-108.89)  474.59                80
 04/10/2023   21:01:49   (  -0.02,-104.72) (   0.05,-104.44)   32.28                80
 04/13/2023   09:05:47   (   0.01,-104.71) (   0.16,-105.36)   74.99                80
 04/14/2023   08:44:44   (   0.01,-104.70) (  -0.81,-100.90)  431.77                80
 04/15/2023   21:07:14   (  -0.01,-104.68) (  -0.37,-106.33)  187.52                80
 04/16/2023   20:51:31   (  -0.02,-104.67) (   0.61,-101.87)  319.80                80