Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 4 22.  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) (   0.62,-139.28)  242.94                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,-138.33) (  -0.58,-140.29)  224.40                80
 04/25/2023   23:05:23   (  -0.13,-138.81) (   0.53,-135.86)  335.57                80
 04/27/2023   11:30:26   (   0.11,-139.57) (   0.47,-141.28)  194.55                80
 04/28/2023   11:09:24   (   0.12,-140.05) (  -0.58,-136.84)  365.20                80
 04/29/2023   23:34:36   (  -0.10,-140.74) (  -0.46,-142.29)  177.16                80
 04/30/2023   23:13:35   (  -0.12,-141.21) (   0.65,-137.86)  382.43                80
 05/02/2023   11:38:37   (   0.10,-141.97) (   0.39,-143.27)  148.42                80
 05/03/2023   11:17:36   (   0.11,-142.44) (  -0.73,-138.84)  410.78                80
 05/04/2023   23:42:47   (  -0.08,-143.12) (  -0.35,-144.29)  132.78                80
 05/05/2023   23:21:44   (  -0.10,-143.59) (   0.72,-139.85)  425.85                80