Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 9 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/22/2023   09:26:28   (  -0.01,-104.71) (   0.73,-108.09)  384.90                80
 09/23/2023   09:05:24   (  -0.01,-104.71) (  -0.27,-103.63)  123.28                80
 09/24/2023   21:27:51   (   0.01,-104.67) (  -0.95,-109.03)  496.95                80
 09/25/2023   21:12:07   (   0.01,-104.67) (   0.06,-104.57)   12.00                80
 09/28/2023   09:15:59   (  -0.00,-104.71) (   0.19,-105.47)   87.32                80
 09/29/2023   08:54:55   (  -0.00,-104.71) (  -0.82,-101.01)  421.39                80
 09/30/2023   21:17:22   (   0.00,-104.67) (  -0.37,-106.41)  198.21                80
 10/01/2023   21:01:37   (   0.00,-104.67) (   0.59,-101.94)  310.73                80
 10/03/2023   09:23:55   (   0.00,-104.71) (   0.61,-107.31)  296.46                80
 10/04/2023   09:02:51   (   0.00,-104.71) (  -0.41,-102.85)  212.28                80