Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2026 7 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/21/2026   23:57:10   (  -1.37,  63.20) (  -0.47,  59.26)  449.35                80
 07/22/2026   23:35:34   (  -1.38,  63.20) (  -1.56,  63.85)   75.56                80
 07/25/2026   11:38:15   (   1.38,  63.27) (   1.41,  63.29)    3.95                80
 07/27/2026   23:43:28   (  -1.38,  63.17) (  -1.26,  62.75)   48.02                80
 07/28/2026   23:21:52   (  -1.40,  63.17) (  -2.35,  67.35)  476.05                80
 07/30/2026   11:46:09   (   1.37,  63.26) (   1.12,  62.19)  122.60                80
 07/31/2026   11:24:33   (   1.39,  63.26) (   2.22,  66.78)  401.98                80
 08/01/2026   23:48:42   (  -1.35,  63.16) (  -1.02,  61.64)  172.46                80
 08/02/2026   23:27:07   (  -1.38,  63.16) (  -2.11,  66.23)  351.17                80
 08/04/2026   11:51:22   (   1.32,  63.27) (   0.83,  61.09)  248.52                80