Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2020 6 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 06/25/2020   19:25:38   (   0.01,-137.19) (   0.35,-138.68)  169.94                80
 06/27/2020   19:16:08   (   0.01,-137.18) (  -0.29,-135.73)  165.07                80
 06/28/2020   07:34:53   (  -0.01,-137.18) (  -0.78,-140.93)  425.37                80
 06/29/2020   19:03:58   (   0.01,-137.17) (  -0.94,-132.78)  499.69                80
 06/30/2020   07:22:42   (  -0.01,-137.16) (  -0.19,-137.96)   90.86                80
 07/02/2020   07:13:12   (  -0.02,-137.14) (   0.46,-135.01)  242.98                80
 07/02/2020   19:31:47   (   0.02,-137.13) (   0.68,-140.16)  344.46                80
 07/04/2020   19:19:37   (   0.01,-137.10) (   0.03,-137.21)   11.71                80
 07/06/2020   19:10:06   (   0.01,-137.07) (  -0.56,-134.24)  320.63                80
 07/07/2020   07:28:51   (  -0.01,-137.06) (  -0.50,-139.44)  270.33                80