Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 9 28.  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)
 09/28/2023   10:22:48   (  -0.02,-137.01) (  -0.43,-135.26)  200.82                80
 09/29/2023   22:44:44   (   0.02,-137.02) (  -0.75,-140.56)  403.24                80
 09/30/2023   22:28:38   (   0.01,-137.02) (   0.23,-136.02)  113.49                80
 10/02/2023   10:50:26   (  -0.02,-137.02) (   0.93,-141.29)  486.84                80
 10/03/2023   10:29:00   (  -0.02,-137.02) (  -0.05,-136.76)   29.45                80
 10/05/2023   22:32:12   (   0.03,-137.00) (  -0.07,-137.54)   60.47                80
 10/06/2023   22:16:07   (   0.03,-137.00) (   0.93,-133.00)  455.30                80
 10/08/2023   10:37:54   (  -0.04,-136.99) (   0.22,-138.28)  146.30                80
 10/09/2023   10:16:28   (  -0.04,-136.98) (  -0.77,-133.74)  369.24                80
 10/10/2023   22:38:24   (   0.04,-136.96) (  -0.43,-139.04)  236.99                80
 10/11/2023   22:22:18   (   0.04,-136.95) (   0.57,-134.50)  278.51                80