Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2025 5 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)
 05/16/2025   22:04:38   (   0.00,-104.41) (  -0.31,-105.86)  164.99                80
 05/17/2025   21:48:28   (   0.00,-104.41) (   0.70,-101.28)  355.94                80
 05/19/2025   10:10:09   (   0.00,-104.41) (   0.45,-106.48)  235.80                80
 05/20/2025   09:48:39   (  -0.00,-104.41) (  -0.56,-101.91)  284.77                80
 05/21/2025   22:10:28   (  -0.00,-104.40) (  -0.64,-107.14)  312.55                80
 05/22/2025   21:54:20   (  -0.00,-104.40) (   0.44,-102.58)  208.59                80
 05/24/2025   10:15:59   (   0.00,-104.41) (   0.76,-107.76)  382.25                80
 05/25/2025   09:54:30   (  -0.00,-104.41) (  -0.26,-103.19)  138.21                80
 05/26/2025   22:16:19   (   0.00,-104.39) (  -0.93,-108.42)  460.42                80
 05/27/2025   22:00:11   (  -0.00,-104.39) (   0.15,-103.86)   60.47                80
 05/30/2025   10:03:00   (   0.01,-104.39) (   0.02,-104.48)    9.41                80