Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 4 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/13/2023   10:44:47   (   0.14,-132.69) (  -0.28,-130.84)  210.37                80
 04/14/2023   23:09:59   (  -0.13,-133.41) (  -0.80,-136.29)  329.24                80
 04/15/2023   22:48:58   (  -0.15,-133.89) (   0.34,-131.87)  231.90                80
 04/17/2023   11:14:02   (   0.13,-134.68) (   0.71,-137.28)  296.21                80
 04/18/2023   10:53:00   (   0.14,-135.17) (  -0.38,-132.85)  264.67                80
 04/19/2023   23:18:13   (  -0.12,-135.88) (  -0.70,-138.30)  275.57                80
 04/20/2023   22:57:12   (  -0.14,-136.37) (   0.45,-133.87)  285.16                80
 04/22/2023   11:22:15   (   0.11,-137.15) (   0.58,-139.29)  243.85                80
 04/23/2023   11:01:14   (   0.13,-137.63) (  -0.51,-134.86)  316.35                80
 04/24/2023   23:26:26   (  -0.11,-138.33) (  -0.55,-140.31)  225.25                80
 04/25/2023   23:05:25   (  -0.12,-138.81) (   0.55,-135.88)  334.77                80