Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2020 12 21.  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)
 12/21/2020   07:38:07   (   0.01,-137.23) (  -0.79,-140.92)  420.30                80
 12/23/2020   07:25:56   (   0.01,-137.22) (  -0.12,-137.97)   84.66                80
 12/25/2020   07:11:04   (   0.02,-137.21) (   0.49,-135.01)  250.44                80
 12/25/2020   19:34:59   (  -0.02,-137.21) (   0.63,-140.16)  336.37                80
 12/27/2020   19:22:47   (  -0.02,-137.19) (   0.01,-137.20)    3.55                80
 12/29/2020   19:10:35   (  -0.02,-137.16) (  -0.61,-134.24)  331.10                80
 12/30/2020   07:31:59   (   0.02,-137.15) (  -0.49,-139.43)  259.89                80
 01/01/2021   07:17:07   (   0.01,-137.11) (   0.13,-136.47)   72.67                80
 01/03/2021   07:07:35   (   0.01,-137.07) (   0.76,-133.51)  404.60                80
 01/03/2021   19:26:09   (  -0.01,-137.06) (   0.36,-138.66)  183.25                80