Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2025 4 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)
 04/19/2025   23:03:36   (   0.04,  61.38) (   0.61,  58.75)  300.27                80
 04/20/2025   22:47:27   (   0.05,  61.40) (  -0.41,  63.31)  219.37                80
 04/22/2025   11:06:37   (  -0.03,  61.43) (  -0.82,  58.09)  381.80                80
 04/23/2025   10:50:28   (  -0.04,  61.45) (   0.21,  62.66)  137.52                80
 04/24/2025   23:09:29   (   0.03,  61.45) (   0.96,  57.46)  456.52                80
 04/25/2025   22:53:21   (   0.03,  61.47) (  -0.07,  62.02)   62.77                80
 04/28/2025   10:53:43   (  -0.02,  61.53) (  -0.05,  61.35)   20.26                80
 04/29/2025   10:37:34   (  -0.03,  61.55) (   0.99,  65.91)  498.14                80
 04/30/2025   22:56:35   (   0.00,  61.57) (   0.22,  60.72)   97.56                80
 05/01/2025   22:40:26   (   0.01,  61.60) (  -0.83,  65.28)  420.88                80
 05/03/2025   10:59:35   (   0.01,  61.64) (  -0.38,  60.06)  181.52                80