Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 4 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)
 04/15/2023   21:07:15   (  -0.00,-104.73) (  -0.36,-106.33)  182.68                80
 04/16/2023   20:51:33   (  -0.00,-104.73) (   0.67,-101.88)  325.24                80
 04/18/2023   09:13:53   (   0.00,-104.73) (   0.55,-107.26)  287.54                80
 04/19/2023   08:52:49   (   0.00,-104.73) (  -0.43,-102.80)  220.27                80
 04/20/2023   21:15:20   (  -0.00,-104.73) (  -0.76,-108.22)  396.84                80
 04/21/2023   20:59:36   (  -0.00,-104.74) (   0.21,-103.76)  111.24                80
 04/24/2023   09:00:53   (   0.00,-104.74) (   0.01,-104.68)    7.12                80
 04/26/2023   21:05:00   (  -0.01,-104.74) (  -0.20,-105.64)  102.58                80
 04/27/2023   20:49:16   (  -0.02,-104.74) (   0.79,-101.18)  405.71                80