Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 11 20.  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)
 11/20/2023   10:29:37   (  -0.00,-137.01) (  -0.05,-136.92)   11.40                80
 11/22/2023   22:32:51   (  -0.00,-137.00) (  -0.14,-137.70)   78.86                80
 11/23/2023   22:16:46   (  -0.00,-137.00) (   0.83,-133.16)  437.15                80
 11/25/2023   10:35:56   (   0.01,-137.00) (   0.34,-138.43)  163.35                80
 11/26/2023   10:19:52   (   0.01,-137.00) (  -0.69,-133.91)  352.28                80
 11/27/2023   22:39:09   (  -0.02,-136.98) (  -0.51,-139.22)  254.68                80
 11/28/2023   22:23:05   (  -0.02,-136.97) (   0.46,-134.68)  260.55                80
 11/30/2023   10:42:14   (   0.03,-136.96) (   0.70,-139.96)  341.16                80
 12/01/2023   10:23:31   (   0.03,-136.95) (  -0.33,-135.43)  173.74                80
 12/02/2023   22:48:07   (  -0.03,-136.93) (  -0.92,-140.73)  434.07                80
 12/03/2023   22:26:44   (  -0.03,-136.91) (   0.12,-136.21)   80.65                80