Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2025 5 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/19/2025   10:58:24   (   0.08,  61.65) (  -0.14,  60.74)  103.47                80
 05/20/2025   10:42:15   (   0.07,  61.63) (   0.93,  65.30)  419.51                80
 05/21/2025   23:01:14   (  -0.09,  61.63) (   0.27,  60.12)  173.65                80
 05/22/2025   22:45:06   (  -0.08,  61.62) (  -0.80,  64.68)  349.15                80
 05/24/2025   11:04:15   (   0.11,  61.57) (  -0.39,  59.45)  242.96                80
 05/25/2025   10:48:07   (   0.10,  61.56) (   0.69,  64.00)  279.31                80
 05/26/2025   23:07:06   (  -0.13,  61.58) (   0.50,  58.82)  315.29                80
 05/27/2025   22:50:57   (  -0.13,  61.57) (  -0.52,  63.39)  206.56                80
 05/29/2025   11:10:07   (   0.15,  61.54) (  -0.60,  58.14)  386.66                80
 05/30/2025   10:53:57   (   0.14,  61.53) (   0.43,  62.72)  135.13                80
 05/31/2025   23:12:57   (  -0.17,  61.56) (   0.76,  57.53)  459.81                80