Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 4 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/22/2023   11:22:14   (   0.12,-137.15) (   0.61,-139.28)  242.90                80
 04/23/2023   11:01:12   (   0.13,-137.63) (  -0.49,-134.85)  317.32                80
 04/24/2023   23:26:25   (  -0.11,-138.33) (  -0.56,-140.30)  224.14                80
 04/25/2023   23:05:23   (  -0.13,-138.81) (   0.54,-135.87)  335.89                80
 04/27/2023   11:30:26   (   0.11,-139.58) (   0.52,-141.27)  194.14                80
 04/28/2023   11:09:24   (   0.12,-140.05) (  -0.60,-136.84)  365.68                80
 04/29/2023   23:34:36   (  -0.10,-140.75) (  -0.44,-142.30)  176.52                80
 04/30/2023   23:13:34   (  -0.12,-141.22) (   0.62,-137.85)  383.15                80
 05/02/2023   11:38:37   (   0.10,-141.98) (   0.37,-143.28)  147.62                80
 05/03/2023   11:17:35   (   0.11,-142.45) (  -0.69,-138.84)  411.66                80
 05/04/2023   23:42:47   (  -0.08,-143.13) (  -0.32,-144.29)  131.76                80