Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 11 9.  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)
 11/09/2023   10:38:19   (  -0.00,-137.01) (   0.32,-138.37)  156.16                80
 11/10/2023   10:16:56   (  -0.00,-137.00) (  -0.69,-133.84)  359.43                80
 11/11/2023   22:38:54   (   0.00,-136.99) (  -0.49,-139.16)  246.91                80
 11/12/2023   22:22:51   (   0.00,-136.99) (   0.52,-134.63)  268.25                80
 11/14/2023   10:44:40   (  -0.00,-136.97) (   0.66,-139.91)  334.30                80
 11/15/2023   10:23:16   (  -0.00,-136.96) (  -0.36,-135.38)  180.20                80
 11/16/2023   22:45:14   (  -0.00,-136.93) (  -0.85,-140.68)  427.96                80
 11/17/2023   22:29:10   (  -0.01,-136.91) (   0.17,-136.16)   86.16                80
 11/20/2023   10:32:15   (   0.02,-136.87) (   0.02,-136.90)    3.92                80
 11/22/2023   22:32:48   (  -0.02,-136.81) (  -0.23,-137.67)   99.11                80