Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 6 2.  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)
 06/03/2023   10:17:13   (  -0.02,-137.01) (  -0.75,-133.78)  368.31                80
 06/04/2023   22:39:09   (   0.02,-136.99) (  -0.44,-139.08)  238.19                80
 06/05/2023   22:23:05   (   0.02,-136.98) (   0.58,-134.55)  277.37                80
 06/07/2023   10:42:12   (  -0.01,-136.97) (   0.61,-139.82)  324.05                80
 06/08/2023   10:26:07   (  -0.00,-136.96) (  -0.36,-135.28)  191.20                80
 06/09/2023   22:45:23   (   0.00,-136.94) (  -0.83,-140.59)  416.35                80
 06/10/2023   22:29:18   (  -0.00,-136.92) (   0.20,-136.06)   98.84                80
 06/13/2023   10:32:21   (   0.00,-136.90) (  -0.05,-136.80)   12.12                80
 06/15/2023   22:32:52   (   0.01,-136.85) (  -0.15,-137.57)   82.34                80