Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 10 24.  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)
 10/25/2023   10:16:32   (  -0.00,-137.01) (  -0.72,-133.75)  371.39                80
 10/26/2023   22:38:31   (   0.00,-137.00) (  -0.47,-139.06)  235.36                80
 10/27/2023   22:22:29   (   0.00,-137.00) (   0.57,-134.55)  280.13                80
 10/29/2023   10:41:39   (  -0.00,-137.00) (   0.60,-139.83)  321.32                80
 10/30/2023   10:25:36   (  -0.00,-137.00) (  -0.38,-135.30)  193.68                80
 10/31/2023   22:44:55   (   0.01,-136.98) (  -0.79,-140.62)  414.59                80
 11/01/2023   22:28:51   (   0.02,-136.97) (   0.20,-136.09)   99.85                80
 11/04/2023   10:29:18   (  -0.02,-136.95) (  -0.03,-136.84)   11.77                80
 11/06/2023   22:35:14   (   0.02,-136.90) (  -0.13,-137.63)   82.91                80