Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 7 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/16/2023   21:15:43   (   0.02,-104.71) (  -0.50,-107.11)  273.33                80
 07/17/2023   20:59:59   (   0.02,-104.71) (   0.48,-102.65)  234.33                80
 07/19/2023   09:22:21   (  -0.03,-104.73) (   0.72,-108.03)  376.67                80
 07/20/2023   09:01:18   (  -0.03,-104.73) (  -0.32,-103.59)  131.01                80
 07/21/2023   21:23:46   (   0.04,-104.70) (  -0.94,-108.99)  488.47                80
 07/22/2023   21:08:04   (   0.04,-104.71) (   0.10,-104.54)   19.79                80
 07/25/2023   09:12:02   (  -0.04,-104.74) (   0.10,-105.46)   82.60                80
 07/26/2023   08:50:58   (  -0.04,-104.73) (  -0.88,-101.01)  425.17                80
 07/27/2023   21:13:28   (   0.05,-104.70) (  -0.31,-106.42)  194.91                80
 07/28/2023   20:57:44   (   0.05,-104.70) (   0.67,-101.96)  312.73                80
 07/30/2023   09:20:04   (  -0.06,-104.73) (   0.55,-107.33)  297.95                80