Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 4 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/12/2023   11:05:48   (   0.13,-132.20) (   0.82,-135.27)  350.76                80
 04/13/2023   10:44:46   (   0.14,-132.68) (  -0.26,-130.84)  210.18                80
 04/14/2023   23:09:59   (  -0.13,-133.40) (  -0.77,-136.30)  329.87                80
 04/15/2023   22:48:58   (  -0.15,-133.89) (   0.32,-131.86)  231.15                80
 04/17/2023   11:14:01   (   0.13,-134.68) (   0.72,-137.28)  296.85                80
 04/18/2023   10:53:00   (   0.14,-135.16) (  -0.37,-132.84)  263.94                80
 04/19/2023   23:18:13   (  -0.12,-135.87) (  -0.64,-138.31)  276.72                80
 04/20/2023   22:57:12   (  -0.13,-136.36) (   0.45,-133.87)  283.91                80
 04/22/2023   11:22:15   (   0.11,-137.14) (   0.58,-139.29)  245.00                80
 04/23/2023   11:01:13   (   0.13,-137.62) (  -0.52,-134.86)  315.13                80
 04/24/2023   23:26:26   (  -0.11,-138.31) (  -0.53,-140.31)  226.87                80