Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 7 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/06/2023   21:02:12   (  -0.00,-104.70) (   0.28,-103.33)  155.60                80
 07/08/2023   09:24:35   (   0.00,-104.73) (   0.88,-108.73)  454.58                80
 07/09/2023   09:03:31   (  -0.00,-104.74) (  -0.09,-104.26)   53.29                80
 07/11/2023   21:07:38   (  -0.00,-104.71) (  -0.09,-105.23)   58.12                80
 07/12/2023   20:51:55   (  -0.00,-104.72) (   0.88,-100.77)  450.16                80
 07/14/2023   09:14:16   (   0.01,-104.75) (   0.33,-106.15)  159.45                80
 07/15/2023   08:53:13   (   0.01,-104.75) (  -0.70,-101.70)  348.39                80
 07/16/2023   21:15:42   (  -0.01,-104.72) (  -0.56,-107.10)  271.58                80
 07/17/2023   20:59:59   (  -0.01,-104.72) (   0.47,-102.65)  236.62                80
 07/19/2023   09:22:21   (   0.01,-104.77) (   0.73,-108.03)  372.24                80