Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2025 9 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)
 09/22/2025   11:27:24   (   0.33,  61.36) (  -0.52,  57.61)  427.74                80
 09/23/2025   11:05:54   (   0.36,  61.35) (   0.56,  62.17)   93.53                80
 09/24/2025   23:30:11   (  -0.30,  61.33) (   0.70,  57.01)  493.53                80
 09/25/2025   23:08:41   (  -0.34,  61.34) (  -0.38,  61.57)   26.35                80
 09/28/2025   11:14:18   (   0.30,  61.38) (   0.22,  60.93)   50.80                80
 09/29/2025   10:52:48   (   0.34,  61.38) (   1.25,  65.50)  469.49                80
 09/30/2025   23:17:05   (  -0.27,  61.37) (  -0.05,  60.33)  118.31                80
 10/01/2025   22:55:35   (  -0.32,  61.38) (  -1.15,  64.89)  400.68                80
 10/03/2025   11:20:01   (   0.25,  61.43) (  -0.15,  59.70)  198.25                80
 10/04/2025   10:58:31   (   0.29,  61.44) (   0.95,  64.26)  321.57                80