Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 12 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/28/2023   10:26:11   (   0.07,  61.38) (  -0.74,  57.91)  396.37                80
 12/29/2023   10:10:23   (   0.06,  61.39) (   0.27,  62.38)  112.90                80
 12/30/2023   22:32:36   (  -0.07,  61.29) (   0.92,  57.04)  485.60                80
 12/31/2023   22:11:29   (  -0.06,  61.31) (  -0.10,  61.51)   23.09                80
 01/03/2024   10:15:24   (   0.07,  61.46) (  -0.11,  60.61)   96.87                80
 01/04/2024   09:59:35   (   0.06,  61.48) (   0.86,  65.10)  412.16                80
 01/05/2024   22:21:49   (  -0.07,  61.38) (   0.32,  59.75)  186.34                80
 01/06/2024   22:00:41   (  -0.06,  61.40) (  -0.71,  64.22)  321.82                80
 01/08/2024   10:23:02   (   0.06,  61.56) (  -0.56,  58.86)  308.78                80
 01/09/2024   10:07:15   (   0.05,  61.59) (   0.47,  63.33)  199.34                80
 01/10/2024   22:29:27   (  -0.05,  61.49) (   0.75,  57.99)  399.65                80