Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 11 11.  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)
 11/11/2025   22:33:51   (   0.01,-137.00) (  -0.08,-137.46)   52.86                80
 11/12/2025   22:15:08   (   0.02,-137.00) (   0.92,-132.94)  462.76                80
 11/14/2025   10:39:39   (  -0.01,-136.99) (   0.27,-138.21)  139.36                80
 11/15/2025   10:18:16   (  -0.02,-136.99) (  -0.74,-133.69)  376.11                80
 11/16/2025   22:42:56   (   0.01,-137.00) (  -0.44,-139.01)  229.02                80
 11/17/2025   22:21:34   (   0.01,-137.00) (   0.57,-134.49)  286.33                80
 11/19/2025   10:46:04   (   0.00,-136.98) (   0.61,-139.76)  316.39                80
 11/20/2025   10:24:42   (   0.00,-136.98) (  -0.41,-135.24)  198.31                80
 11/21/2025   22:49:21   (  -0.01,-136.97) (  -0.81,-140.55)  408.45                80
 11/22/2025   22:27:59   (  -0.01,-136.95) (   0.21,-136.03)  105.83                80
 11/24/2025   10:52:28   (   0.01,-136.93) (   1.01,-141.29)  498.22                80