Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 7 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/14/2023   09:14:16   (   0.00,-104.74) (   0.30,-106.15)  160.91                80
 07/15/2023   08:53:13   (   0.01,-104.73) (  -0.67,-101.69)  346.68                80
 07/16/2023   21:15:42   (  -0.01,-104.71) (  -0.53,-107.10)  272.55                80
 07/17/2023   20:59:59   (  -0.02,-104.71) (   0.44,-102.64)  235.40                80
 07/19/2023   09:22:20   (   0.02,-104.73) (   0.75,-108.03)  374.98                80
 07/20/2023   09:01:17   (   0.02,-104.73) (  -0.23,-103.57)  132.84                80
 07/21/2023   21:23:46   (  -0.03,-104.71) (  -0.97,-108.98)  486.46                80
 07/22/2023   21:08:02   (  -0.03,-104.71) (   0.01,-104.52)   21.76                80
 07/25/2023   09:12:00   (   0.03,-104.75) (   0.19,-105.44)   79.77                80
 07/26/2023   08:50:57   (   0.03,-104.74) (  -0.79,-100.98)  428.12                80
 07/27/2023   21:13:26   (  -0.04,-104.72) (  -0.40,-106.40)  191.69                80