Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 3 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/20/2023   20:47:44   (  -0.02,-104.75) (   0.75,-101.30)  393.15                80
 03/22/2023   09:10:06   (   0.02,-104.75) (   0.46,-106.69)  221.55                80
 03/23/2023   08:49:04   (   0.02,-104.75) (  -0.52,-102.23)  285.82                80
 03/24/2023   21:11:34   (  -0.02,-104.76) (  -0.70,-107.65)  330.72                80
 03/25/2023   20:55:53   (  -0.01,-104.76) (   0.35,-103.21)  176.68                80
 03/27/2023   09:18:14   (  -0.00,-104.76) (   0.89,-108.59)  437.81                80
 03/28/2023   08:57:12   (   0.00,-104.75) (  -0.17,-104.15)   69.62                80
 03/30/2023   21:01:19   (  -0.00,-104.76) (  -0.10,-105.11)   39.96                80
 03/31/2023   20:45:37   (  -0.01,-104.76) (   0.91,-100.66)  467.93                80
 04/02/2023   09:07:58   (   0.01,-104.76) (   0.30,-106.04)  145.44                80