Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 10 1.  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)
 10/02/2023   20:09:14   (   0.00,-104.70) (   0.80,-101.26)  392.67                80
 10/04/2023   08:31:00   (  -0.00,-104.72) (   0.41,-106.52)  205.26                80
 10/05/2023   08:09:36   (  -0.01,-104.72) (  -0.63,-101.99)  311.13                80
 10/06/2023   20:31:31   (   0.02,-104.70) (  -0.58,-107.29)  295.74                80
 10/07/2023   20:15:27   (   0.02,-104.70) (   0.47,-102.77)  221.11                80
 10/09/2023   08:37:13   (  -0.02,-104.73) (   0.73,-108.03)  375.93                80
 10/10/2023   08:15:48   (  -0.02,-104.73) (  -0.32,-103.50)  140.94                80
 10/11/2023   20:37:44   (   0.02,-104.71) (  -0.88,-108.80)  465.56                80
 10/12/2023   20:21:38   (   0.02,-104.72) (   0.13,-104.27)   51.75                80
 10/15/2023   08:24:39   (  -0.02,-104.76) (   0.05,-104.99)   27.45                80