Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-19
TLE Epoch: 2021 9 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 09/01/2021   15:58:26   (   0.01,-137.21) (  -0.90,-133.21)  456.22                80
 09/03/2021   04:28:19   (   0.00,-137.20) (  -0.88,-141.00)  434.00                80
 09/04/2021   04:16:34   (   0.00,-137.20) (  -0.21,-138.13)  106.48                80
 09/05/2021   04:07:28   (   0.01,-137.20) (   0.46,-135.26)  220.91                80
 09/07/2021   16:25:38   (  -0.02,-137.19) (   0.65,-140.20)  342.12                80
 09/08/2021   16:13:52   (  -0.02,-137.19) (   0.03,-137.31)   15.22                80
 09/09/2021   16:04:46   (  -0.02,-137.18) (  -0.64,-134.44)  312.01                80
 09/12/2021   04:22:53   (   0.02,-137.14) (  -0.52,-139.36)  253.37                80
 09/13/2021   04:13:48   (   0.02,-137.13) (   0.15,-136.49)   72.80                80
 09/14/2021   04:02:02   (   0.01,-137.11) (   0.83,-133.62)  398.68                80