Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 10 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-18)   GOES-18 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 10/23/2025   10:52:12   (  -0.01,-137.00) (   0.92,-141.28)  487.50                80
 10/24/2025   10:30:46   (  -0.01,-136.99) (  -0.08,-136.74)   29.39                80
 10/26/2025   22:36:33   (   0.00,-136.98) (  -0.09,-137.49)   58.01                80
 10/27/2025   22:15:07   (   0.01,-136.97) (   0.91,-132.95)  458.09                80
 10/29/2025   10:39:31   (  -0.01,-136.95) (   0.28,-138.20)  143.27                80
 10/30/2025   10:18:05   (  -0.01,-136.94) (  -0.73,-133.66)  372.48                80
 10/31/2025   22:42:39   (   0.01,-136.92) (  -0.44,-138.96)  232.37                80
 11/01/2025   22:21:13   (   0.01,-136.91) (   0.57,-134.42)  283.25                80
 11/03/2025   10:45:37   (   0.00,-136.87) (   0.61,-139.67)  318.67                80
 11/04/2025   10:24:10   (   0.00,-136.85) (  -0.41,-135.13)  196.52                80