Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 3 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/17/2023   09:01:57   (   0.02,-104.75) (   0.02,-104.79)    3.90                80
 03/19/2023   21:03:26   (  -0.02,-104.77) (  -0.22,-105.76)  112.51                80
 03/20/2023   20:47:44   (  -0.02,-104.78) (   0.77,-101.31)  395.52                80
 03/22/2023   09:10:06   (   0.02,-104.78) (   0.44,-106.69)  217.94                80
 03/23/2023   08:49:04   (   0.02,-104.79) (  -0.55,-102.24)  290.06                80
 03/24/2023   21:11:34   (  -0.02,-104.80) (  -0.66,-107.66)  325.74                80
 03/25/2023   20:55:52   (  -0.02,-104.81) (   0.34,-103.21)  182.59                80
 03/27/2023   09:18:13   (   0.02,-104.82) (   0.90,-108.59)  430.41                80
 03/28/2023   08:57:11   (   0.02,-104.82) (  -0.17,-104.15)   77.63                80