Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 12 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/23/2023   10:18:30   (   0.07,  61.33) (  -0.32,  59.68)  188.24                80
 12/24/2023   10:02:42   (   0.06,  61.33) (   0.68,  64.15)  321.45                80
 12/25/2023   22:24:57   (  -0.07,  61.24) (   0.46,  58.80)  277.55                80
 12/26/2023   22:03:48   (  -0.06,  61.25) (  -0.49,  63.29)  231.32                80
 12/28/2023   10:26:12   (   0.07,  61.39) (  -0.69,  57.90)  396.94                80
 12/29/2023   10:10:23   (   0.06,  61.40) (   0.26,  62.39)  112.36                80
 12/30/2023   22:32:37   (  -0.07,  61.29) (   0.87,  57.03)  485.84                80
 12/31/2023   22:11:29   (  -0.06,  61.31) (  -0.09,  61.52)   22.98                80
 01/03/2024   10:15:24   (   0.07,  61.47) (  -0.12,  60.61)   97.32                80
 01/04/2024   09:59:36   (   0.06,  61.48) (   0.90,  65.08)  411.69                80
 01/05/2024   22:21:49   (  -0.07,  61.38) (   0.33,  59.75)  186.54                80