Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 1 30.  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)
 01/30/2024   22:38:55   (   0.02,-137.00) (  -0.46,-139.11)  241.00                80
 01/31/2024   22:22:50   (   0.02,-137.00) (   0.57,-134.58)  276.14                80
 02/02/2024   10:41:55   (  -0.02,-137.01) (   0.64,-139.83)  322.18                80
 02/03/2024   10:25:49   (  -0.02,-137.00) (  -0.40,-135.30)  194.37                80
 02/04/2024   22:45:04   (   0.03,-136.98) (  -0.80,-140.59)  411.93                80
 02/05/2024   22:28:58   (   0.03,-136.97) (   0.24,-136.06)  103.96                80
 02/07/2024   10:48:04   (  -0.04,-136.96) (   0.96,-141.31)  496.18                80
 02/08/2024   10:31:58   (  -0.04,-136.95) (  -0.09,-136.78)   19.27                80
 02/10/2024   22:32:26   (   0.05,-136.89) (  -0.11,-137.53)   72.99                80
 02/11/2024   22:16:21   (   0.05,-136.87) (   0.94,-133.00)  442.37                80