Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2025 6 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)
 06/19/2025   11:14:37   (   0.28,  61.28) (  -0.57,  57.57)  422.71                80
 06/20/2025   10:58:28   (   0.27,  61.27) (   0.48,  62.14)   99.32                80
 06/21/2025   23:17:27   (  -0.29,  61.31) (   0.71,  56.95)  497.77                80
 06/22/2025   23:01:18   (  -0.29,  61.31) (  -0.33,  61.52)   23.48                80
 06/25/2025   11:01:37   (   0.31,  61.27) (   0.21,  60.86)   47.34                80
 06/26/2025   10:45:27   (   0.30,  61.28) (   1.26,  65.43)  473.78                80
 06/27/2025   23:04:27   (  -0.33,  61.32) (  -0.07,  60.24)  124.02                80
 06/28/2025   22:48:17   (  -0.32,  61.33) (  -1.12,  64.81)  397.04                80
 06/30/2025   11:07:25   (   0.34,  61.29) (  -0.03,  59.57)  194.91                80
 07/01/2025   10:51:15   (   0.33,  61.29) (   0.96,  64.15)  326.43                80