Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 7 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/09/2023   09:03:32   (  -0.00,-104.73) (  -0.10,-104.27)   53.13                80
 07/11/2023   21:07:37   (  -0.00,-104.72) (  -0.13,-105.22)   57.72                80
 07/12/2023   20:51:55   (  -0.00,-104.72) (   0.90,-100.77)  450.54                80
 07/14/2023   09:14:16   (   0.01,-104.75) (   0.31,-106.15)  159.42                80
 07/15/2023   08:53:13   (   0.01,-104.75) (  -0.66,-101.69)  348.47                80
 07/16/2023   21:15:42   (  -0.01,-104.72) (  -0.53,-107.10)  271.05                80
 07/17/2023   20:59:59   (  -0.01,-104.73) (   0.44,-102.64)  237.20                80
 07/19/2023   09:22:20   (   0.01,-104.77) (   0.75,-108.03)  372.00                80
 07/20/2023   09:01:17   (   0.01,-104.77) (  -0.28,-103.58)  136.14                80
 07/21/2023   21:23:46   (  -0.01,-104.74) (  -0.97,-108.98)  483.47                80
 07/22/2023   21:08:02   (  -0.01,-104.75) (   0.01,-104.52)   25.27                80