Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2020 12 23.  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)
 12/23/2020   07:25:56   (   0.01,-137.22) (  -0.13,-137.97)   84.83                80
 12/25/2020   07:11:04   (   0.02,-137.21) (   0.49,-135.01)  250.10                80
 12/25/2020   19:34:59   (  -0.01,-137.20) (   0.63,-140.16)  336.48                80
 12/27/2020   19:22:47   (  -0.02,-137.18) (   0.01,-137.20)    4.06                80
 12/29/2020   19:10:35   (  -0.02,-137.15) (  -0.61,-134.24)  330.67                80
 12/30/2020   07:31:58   (   0.02,-137.14) (  -0.50,-139.43)  260.63                80
 01/01/2021   07:17:07   (   0.01,-137.11) (   0.13,-136.47)   71.79                80
 01/03/2021   07:04:55   (   0.01,-137.06) (   0.76,-133.51)  403.56                80
 01/03/2021   19:26:09   (  -0.01,-137.05) (   0.36,-138.66)  184.07                80
 01/05/2021   19:16:37   (  -0.01,-137.00) (  -0.27,-135.71)  147.13                80