Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 4 19.  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   (  -0.13,-135.89) (  -0.67,-138.30)  274.53                80
 04/20/2023   22:57:11   (  -0.14,-136.37) (   0.42,-133.86)  286.19                80
 04/22/2023   11:22:14   (   0.12,-137.15) (   0.59,-139.28)  242.89                80
 04/23/2023   11:01:13   (   0.13,-137.63) (  -0.51,-134.85)  317.38                80
 04/24/2023   23:26:25   (  -0.11,-138.34) (  -0.55,-140.30)  223.94                80
 04/25/2023   23:05:24   (  -0.13,-138.81) (   0.56,-135.87)  336.14                80
 04/27/2023   11:30:26   (   0.11,-139.58) (   0.50,-141.28)  193.87                80
 04/28/2023   11:09:24   (   0.12,-140.06) (  -0.61,-136.85)  365.98                80
 04/29/2023   23:34:37   (  -0.10,-140.75) (  -0.43,-142.30)  176.11                80
 04/30/2023   23:13:34   (  -0.12,-141.22) (   0.63,-137.86)  383.62                80
 05/02/2023   11:38:38   (   0.10,-141.99) (   0.36,-143.28)  147.15                80
 05/03/2023   11:17:35   (   0.11,-142.45) (  -0.70,-138.84)  412.18                80