Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 8 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 08/28/2023   08:24:42   (   0.01,-104.71) (   0.04,-104.96)   28.54                80
 08/29/2023   08:03:17   (   0.01,-104.71) (  -0.95,-100.43)  487.27                80
 08/30/2023   20:25:14   (  -0.02,-104.67) (  -0.28,-105.73)  121.14                80
 08/31/2023   20:09:10   (  -0.01,-104.68) (   0.77,-101.21)  395.07                80
 09/02/2023   08:30:58   (   0.02,-104.71) (   0.42,-106.48)  202.32                80
 09/03/2023   08:09:34   (   0.01,-104.71) (  -0.57,-101.95)  313.69                80
 09/04/2023   20:31:31   (  -0.02,-104.68) (  -0.59,-107.26)  294.80                80
 09/05/2023   20:15:27   (  -0.01,-104.68) (   0.41,-102.73)  221.46                80
 09/07/2023   08:37:15   (   0.02,-104.72) (   0.78,-108.00)  375.51                80
 09/08/2023   08:15:52   (   0.02,-104.71) (  -0.28,-103.49)  140.48                80
 09/09/2023   20:37:48   (  -0.02,-104.68) (  -0.94,-108.79)  468.44                80