Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 9 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/19/2022   10:28:46   (   0.32,-127.82) (   0.49,-128.51)   78.16                80
 09/20/2022   10:07:41   (   0.32,-127.85) (  -0.51,-124.04)  433.59                80
 09/21/2022   22:30:07   (  -0.30,-127.83) (  -0.66,-129.46)  185.31                80
 09/22/2022   22:14:22   (  -0.30,-127.86) (   0.34,-125.00)  326.78                80
 09/24/2022   10:34:00   (   0.29,-127.98) (   0.81,-130.38)  273.27                80
 09/25/2022   10:15:35   (   0.29,-128.01) (  -0.19,-125.92)  238.30                80
 09/26/2022   22:38:00   (  -0.27,-127.97) (  -1.02,-131.32)  381.89                80
 09/27/2022   22:22:14   (  -0.28,-128.00) (  -0.02,-126.86)  129.80                80
 09/29/2022   10:41:53   (   0.26,-128.11) (   1.17,-132.25)  470.58                80
 09/30/2022   10:26:07   (   0.27,-128.13) (   0.17,-127.78)   40.21                80