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   (  -0.02,-104.71) (   0.01,-104.97)   29.26                80
 08/29/2023   08:03:18   (  -0.03,-104.71) (  -0.98,-100.44)  486.45                80
 08/30/2023   20:25:15   (   0.03,-104.68) (  -0.20,-105.75)  121.82                80
 08/31/2023   20:09:10   (   0.03,-104.68) (   0.79,-101.22)  394.47                80
 09/02/2023   08:30:59   (  -0.03,-104.71) (   0.40,-106.49)  203.03                80
 09/03/2023   08:09:35   (  -0.03,-104.71) (  -0.66,-101.97)  313.12                80
 09/04/2023   20:31:32   (   0.03,-104.68) (  -0.57,-107.27)  295.29                80
 09/05/2023   20:15:28   (   0.03,-104.68) (   0.49,-102.75)  221.01                80
 09/07/2023   08:37:16   (  -0.04,-104.72) (   0.70,-108.02)  376.20                80
 09/08/2023   08:15:52   (  -0.04,-104.72) (  -0.30,-103.49)  139.75                80
 09/09/2023   20:37:49   (   0.04,-104.68) (  -0.86,-108.81)  469.20                80