Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 8 31.  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)
 08/31/2023   10:50:22   (  -0.00,-137.00) (   0.92,-141.25)  483.85                80
 09/01/2023   10:28:58   (  -0.00,-137.00) (  -0.07,-136.72)   32.28                80
 09/03/2023   22:32:11   (   0.00,-136.99) (  -0.11,-137.50)   57.49                80
 09/04/2023   22:16:06   (  -0.00,-136.99) (   0.89,-132.97)  458.26                80
 09/06/2023   10:37:55   (   0.00,-136.99) (   0.29,-138.24)  143.10                80
 09/07/2023   10:16:30   (   0.01,-136.98) (  -0.71,-133.71)  372.21                80
 09/08/2023   22:38:27   (  -0.01,-136.96) (  -0.46,-139.02)  234.83                80
 09/09/2023   22:22:23   (  -0.01,-136.95) (   0.55,-134.49)  280.25                80
 09/11/2023   10:44:11   (   0.02,-136.94) (   0.63,-139.77)  321.89                80
 09/12/2023   10:22:47   (   0.02,-136.92) (  -0.38,-135.24)  192.94                80
 09/13/2023   22:44:43   (  -0.02,-136.90) (  -0.84,-140.54)  414.84                80