Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2020 9 19.  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   07:13:41   (   0.04,-137.18) (   0.50,-135.02)  246.31                80
 09/20/2020   19:32:17   (  -0.05,-137.18) (   0.58,-140.18)  340.19                80
 09/22/2020   19:20:06   (  -0.04,-137.17) (  -0.03,-137.22)    5.79                80
 09/24/2020   19:10:35   (  -0.04,-137.14) (  -0.64,-134.26)  327.95                80
 09/25/2020   07:29:19   (   0.04,-137.13) (  -0.48,-139.44)  263.28                80
 09/27/2020   07:19:48   (   0.03,-137.11) (   0.13,-136.49)   70.11                80
 09/29/2020   07:04:58   (   0.03,-137.08) (   0.81,-133.54)  403.12                80
 09/29/2020   19:26:13   (  -0.03,-137.07) (   0.33,-138.69)  183.97                80
 10/01/2020   19:16:42   (  -0.03,-137.04) (  -0.28,-135.73)  148.76                80
 10/02/2020   07:38:07   (   0.03,-137.03) (  -0.77,-140.93)  442.56                80