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   21:15:42   (   0.02,-104.71) (  -0.53,-107.10)  273.45                80
 07/17/2023   21:00:00   (   0.03,-104.71) (   0.50,-102.66)  234.21                80
 07/19/2023   09:22:21   (  -0.03,-104.73) (   0.69,-108.04)  376.74                80
 07/20/2023   09:01:18   (  -0.04,-104.73) (  -0.28,-103.58)  130.92                80
 07/21/2023   21:23:47   (   0.04,-104.71) (  -0.92,-108.99)  488.51                80
 07/22/2023   21:08:03   (   0.04,-104.71) (   0.06,-104.53)   19.67                80
 07/25/2023   09:12:01   (  -0.04,-104.74) (   0.13,-105.46)   82.52                80
 07/26/2023   08:50:59   (  -0.04,-104.74) (  -0.91,-101.01)  425.22                80
 07/27/2023   21:13:27   (   0.05,-104.71) (  -0.35,-106.41)  194.82                80
 07/28/2023   20:57:45   (   0.05,-104.70) (   0.70,-101.97)  312.81                80