Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 6 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)
 06/06/2023   09:12:41   (  -0.02,-104.72) (   0.36,-106.30)  180.14                80
 06/07/2023   08:51:39   (  -0.00,-104.72) (  -0.63,-101.84)  327.11                80
 06/08/2023   21:14:09   (  -0.00,-104.70) (  -0.59,-107.26)  292.25                80
 06/09/2023   20:58:27   (  -0.01,-104.70) (   0.41,-102.80)  215.47                80
 06/11/2023   09:20:49   (   0.01,-104.72) (   0.79,-108.19)  395.91                80
 06/12/2023   08:59:46   (   0.02,-104.72) (  -0.20,-103.74)  111.60                80
 06/14/2023   21:06:34   (  -0.01,-104.70) (  -0.00,-104.70)    0.98                80
 06/17/2023   09:10:34   (  -0.00,-104.72) (   0.20,-105.63)  103.96                80
 06/18/2023   08:49:32   (  -0.00,-104.72) (  -0.79,-101.18)  403.43                80
 06/19/2023   21:12:01   (   0.01,-104.70) (  -0.44,-106.59)  216.54                80