Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 8 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/19/2023   20:53:03   (  -0.01,-104.69) (   0.93,-100.50)  477.29                80
 08/21/2023   09:15:23   (   0.01,-104.72) (   0.26,-105.88)  131.66                80
 08/22/2023   08:54:19   (   0.01,-104.72) (  -0.75,-101.42)  376.33                80
 08/23/2023   21:16:47   (  -0.02,-104.68) (  -0.49,-106.82)  243.91                80
 08/24/2023   21:01:04   (  -0.02,-104.68) (   0.53,-102.37)  264.08                80
 08/26/2023   09:23:22   (   0.02,-104.71) (   0.72,-107.73)  345.09                80
 08/27/2023   09:02:19   (   0.03,-104.70) (  -0.31,-103.28)  162.47                80
 08/28/2023   21:24:47   (  -0.03,-104.66) (  -0.93,-108.68)  458.66                80
 08/29/2023   21:09:03   (  -0.04,-104.65) (   0.04,-104.22)   49.27                80
 09/01/2023   09:12:57   (   0.04,-104.68) (   0.17,-105.13)   51.53                80