Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 10 5.  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)
 10/05/2023   22:34:51   (  -0.01,-137.00) (  -0.15,-137.52)   59.31                80
 10/06/2023   22:13:26   (  -0.00,-137.00) (   0.90,-132.99)  457.09                80
 10/08/2023   10:37:52   (   0.00,-137.00) (   0.30,-138.26)  143.59                80
 10/09/2023   10:16:28   (  -0.01,-137.00) (  -0.76,-133.73)  372.46                80
 10/10/2023   22:38:23   (   0.02,-136.99) (  -0.44,-139.03)  232.65                80
 10/11/2023   22:22:18   (   0.00,-136.99) (   0.57,-134.50)  283.86                80
 10/13/2023   10:41:24   (   0.00,-136.98) (   0.62,-139.76)  316.95                80
 10/14/2023   10:25:19   (   0.01,-136.97) (  -0.39,-135.22)  199.09                80
 10/15/2023   22:44:33   (  -0.02,-136.95) (  -0.85,-140.51)  406.59                80
 10/16/2023   22:28:27   (  -0.03,-136.94) (   0.17,-135.98)  108.92                80
 10/18/2023   10:50:14   (   0.03,-136.92) (   1.00,-141.24)  493.46                80