Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 4 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)
 04/19/2023   23:18:12   (  -0.12,-135.89) (  -0.69,-138.29)  274.76                80
 04/20/2023   22:57:12   (  -0.14,-136.37) (   0.46,-133.87)  286.02                80
 04/22/2023   11:22:14   (   0.12,-137.15) (   0.62,-139.28)  243.06                80
 04/23/2023   11:01:12   (   0.13,-137.63) (  -0.48,-134.84)  317.23                80
 04/24/2023   23:26:25   (  -0.11,-138.34) (  -0.58,-140.30)  224.12                80
 04/25/2023   23:05:23   (  -0.12,-138.81) (   0.52,-135.86)  336.00                80
 04/27/2023   11:30:27   (   0.10,-139.58) (   0.48,-141.28)  193.99                80
 04/28/2023   11:09:25   (   0.12,-140.06) (  -0.63,-136.85)  365.86                80
 04/29/2023   23:34:36   (  -0.10,-140.75) (  -0.47,-142.29)  176.26                80
 04/30/2023   23:13:35   (  -0.12,-141.23) (   0.64,-137.86)  383.47                80
 05/02/2023   11:38:37   (   0.10,-141.99) (   0.41,-143.27)  147.27                80