Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2020 9 20.  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)
 09/20/2020   07:13:42   (   0.04,-137.19) (   0.53,-135.02)  246.55                80
 09/20/2020   19:32:17   (  -0.05,-137.18) (   0.61,-140.17)  340.08                80
 09/22/2020   19:22:47   (  -0.04,-137.17) (  -0.06,-137.22)    6.23                80
 09/24/2020   19:10:36   (  -0.04,-137.15) (  -0.67,-134.26)  328.42                80
 09/25/2020   07:29:20   (   0.04,-137.14) (  -0.45,-139.45)  262.60                80
 09/27/2020   07:17:34   (   0.03,-137.12) (   0.16,-136.49)   70.86                55
 09/29/2020   07:04:58   (   0.03,-137.09) (   0.78,-133.53)  404.12                80
 09/29/2020   19:26:13   (  -0.03,-137.08) (   0.31,-138.69)  183.06                80
 10/01/2020   19:16:42   (  -0.03,-137.05) (  -0.31,-135.73)  149.81                80
 10/02/2020   07:38:06   (   0.03,-137.04) (  -0.81,-140.92)  441.27                80
 10/03/2020   19:04:32   (  -0.03,-137.01) (  -0.93,-132.77)  482.15                80