Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2020 12 24.  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)
 12/25/2020   07:11:04   (   0.02,-137.21) (   0.48,-135.01)  250.16                80
 12/25/2020   19:34:58   (  -0.02,-137.21) (   0.64,-140.16)  336.16                80
 12/27/2020   19:20:08   (  -0.02,-137.19) (  -0.04,-137.21)    3.31                80
 12/29/2020   19:10:36   (  -0.02,-137.16) (  -0.66,-134.25)  331.18                80
 12/30/2020   07:31:59   (   0.02,-137.15) (  -0.44,-139.44)  260.29                80
 01/01/2021   07:17:07   (   0.02,-137.11) (   0.18,-136.48)   72.21                80
 01/03/2021   07:04:54   (   0.02,-137.07) (   0.75,-133.51)  404.03                80
 01/03/2021   19:26:10   (  -0.02,-137.06) (   0.31,-138.68)  183.35                80
 01/05/2021   19:16:37   (  -0.01,-137.01) (  -0.27,-135.70)  147.98                80
 01/06/2021   07:38:01   (   0.01,-137.00) (  -0.83,-140.90)  443.76                80