Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2020 7 18.  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)
 07/18/2020   07:13:18   (   0.00,-137.20) (   0.49,-135.01)  248.92                80
 07/18/2020   19:31:53   (  -0.01,-137.20) (   0.64,-140.16)  337.39                80
 07/20/2020   19:22:23   (  -0.00,-137.19) (  -0.02,-137.21)    3.09                80
 07/22/2020   19:10:12   (  -0.02,-137.18) (  -0.63,-134.25)  332.90                80
 07/23/2020   07:28:57   (   0.03,-137.17) (  -0.44,-139.45)  257.97                80
 07/25/2020   07:19:26   (   0.03,-137.16) (   0.17,-136.49)   76.48                80
 07/27/2020   07:07:15   (   0.02,-137.14) (   0.78,-133.52)  410.49                80
 07/27/2020   19:25:51   (  -0.02,-137.13) (   0.30,-138.68)  176.47                80
 07/29/2020   19:16:20   (  -0.02,-137.10) (  -0.32,-135.72)  156.65                80
 07/30/2020   07:35:04   (   0.02,-137.09) (  -0.81,-140.91)  434.66                80
 07/31/2020   19:04:09   (   0.01,-137.06) (  -0.93,-132.76)  489.56                80