Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 10 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)
 10/19/2023   21:19:49   (   0.15,  76.82) (   0.79,  74.01)  320.08                80
 10/20/2023   20:58:47   (   0.17,  75.77) (  -0.44,  78.42)  303.31                80
 10/22/2023   09:23:59   (  -0.14,  74.16) (  -0.39,  72.95)  138.04                80
 10/23/2023   09:02:56   (  -0.16,  73.10) (   0.79,  77.37)  486.71                80
 10/24/2023   21:25:20   (   0.13,  71.46) (   0.05,  71.93)   53.13                80
 10/26/2023   09:50:31   (  -0.10,  69.87) (  -0.87,  66.45)  389.17                80
 10/27/2023   09:29:28   (  -0.13,  68.80) (   0.32,  70.88)  235.94                80
 10/28/2023   21:54:32   (   0.10,  67.14) (   0.51,  65.43)  195.83                80
 10/29/2023   21:33:30   (   0.13,  66.10) (  -0.75,  69.84)  427.90                80
 10/31/2023   09:58:41   (  -0.10,  64.51) (  -0.11,  64.37)   15.17                80
 11/01/2023   22:21:04   (   0.07,  62.84) (   0.93,  58.93)  445.97                80