Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 10 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/20/2023   20:58:47   (   0.17,  75.77) (  -0.44,  78.43)  303.40                80
 10/22/2023   09:23:59   (  -0.14,  74.16) (  -0.40,  72.95)  137.80                80
 10/23/2023   09:02:56   (  -0.16,  73.10) (   0.79,  77.37)  487.01                80
 10/24/2023   21:25:21   (   0.13,  71.46) (   0.00,  71.92)   53.44                80
 10/26/2023   09:50:31   (  -0.10,  69.86) (  -0.89,  66.46)  388.70                80
 10/27/2023   09:29:29   (  -0.13,  68.80) (   0.37,  70.87)  236.48                80
 10/28/2023   21:54:33   (   0.10,  67.14) (   0.47,  65.42)  195.24                80
 10/29/2023   21:33:30   (   0.13,  66.09) (  -0.73,  69.85)  428.52                80
 10/31/2023   09:58:40   (  -0.10,  64.50) (  -0.13,  64.38)   14.23                80
 11/01/2023   22:21:04   (   0.07,  62.84) (   0.96,  58.93)  445.18                80
 11/02/2023   22:00:01   (   0.10,  61.79) (  -0.25,  63.35)  178.19                80