Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2026 7 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/22/2026   10:06:00   (  -1.03, -89.50) (  -0.24, -92.90)  388.04                80
 07/23/2026   09:44:24   (  -1.04, -89.50) (  -1.33, -88.31)  136.53                80
 07/24/2026   22:08:40   (   1.03, -89.49) (   0.10, -93.46)  454.03                80
 07/25/2026   21:47:05   (   1.05, -89.49) (   1.19, -88.87)   70.61                80
 07/28/2026   09:49:39   (  -1.05, -89.51) (  -1.09, -89.42)   10.88                80
 07/30/2026   21:55:00   (   1.05, -89.51) (   0.95, -89.99)   53.90                80
 07/31/2026   21:33:23   (   1.06, -89.52) (   1.99, -85.38)  471.25                80
 08/02/2026   09:57:33   (  -1.04, -89.54) (  -0.79, -90.52)  111.93                80
 08/03/2026   09:35:57   (  -1.06, -89.55) (  -1.89, -85.93)  413.21                80