Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 4 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/18/2023   10:52:59   (   0.14,-135.17) (  -0.35,-132.84)  265.23                80
 04/19/2023   23:18:13   (  -0.12,-135.89) (  -0.66,-138.30)  274.79                80
 04/20/2023   22:57:11   (  -0.14,-136.37) (   0.43,-133.87)  285.96                80
 04/22/2023   11:22:15   (   0.12,-137.15) (   0.59,-139.28)  243.11                80
 04/23/2023   11:01:13   (   0.13,-137.63) (  -0.51,-134.85)  317.16                80
 04/24/2023   23:26:25   (  -0.11,-138.34) (  -0.55,-140.30)  224.17                80
 04/25/2023   23:05:24   (  -0.12,-138.81) (   0.55,-135.87)  335.91                80
 04/27/2023   11:30:26   (   0.10,-139.58) (   0.51,-141.28)  194.11                80
 04/28/2023   11:09:25   (   0.12,-140.06) (  -0.59,-136.85)  365.75                80
 04/29/2023   23:34:37   (  -0.10,-140.75) (  -0.45,-142.30)  176.37                80
 04/30/2023   23:13:36   (  -0.12,-141.23) (   0.66,-137.87)  383.35                80