Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 8 2.  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)
 08/02/2023   22:32:18   (   0.03,-136.99) (  -0.11,-137.49)   57.93                80
 08/03/2023   22:16:13   (   0.03,-136.99) (   0.93,-132.96)  459.31                80
 08/05/2023   10:35:19   (  -0.03,-137.00) (   0.23,-138.23)  139.96                80
 08/06/2023   10:19:14   (  -0.03,-137.00) (  -0.80,-133.70)  377.04                80
 08/07/2023   22:38:28   (   0.04,-137.00) (  -0.39,-139.00)  227.45                80
 08/08/2023   22:22:21   (   0.04,-137.00) (   0.59,-134.46)  289.20                80
 08/10/2023   10:41:28   (  -0.04,-136.99) (   0.56,-139.72)  311.14                80
 08/11/2023   10:25:21   (  -0.04,-136.99) (  -0.42,-135.18)  205.00                80
 08/12/2023   22:44:35   (   0.05,-136.97) (  -0.76,-140.48)  400.91                80
 08/13/2023   22:28:30   (   0.05,-136.96) (   0.29,-135.95)  115.02                80
 08/15/2023   10:47:35   (  -0.06,-136.95) (   0.92,-141.21)  486.10                80