Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 6 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/17/2023   09:10:34   (   0.00,-104.72) (   0.22,-105.63)  103.39                80
 06/18/2023   08:49:31   (   0.00,-104.72) (  -0.78,-101.17)  404.00                80
 06/19/2023   21:12:01   (  -0.00,-104.71) (  -0.41,-106.60)  214.84                80
 06/20/2023   20:56:19   (  -0.00,-104.71) (   0.60,-102.14)  292.92                80
 06/22/2023   09:18:40   (  -0.00,-104.73) (   0.65,-107.52)  318.56                80
 06/23/2023   08:57:38   (  -0.00,-104.73) (  -0.35,-103.06)  189.09                80
 06/24/2023   21:20:08   (   0.01,-104.71) (  -0.82,-108.49)  429.73                80
 06/25/2023   21:04:26   (   0.01,-104.72) (   0.19,-104.04)   78.40                80
 06/28/2023   09:08:24   (  -0.01,-104.75) (   0.05,-104.96)   24.40                80
 06/29/2023   08:47:22   (  -0.01,-104.75) (  -0.96,-100.51)  483.28                80
 06/30/2023   21:09:51   (   0.00,-104.73) (  -0.25,-105.92)  136.01                80