Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2020 12 31.  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)
 01/01/2021   07:17:07   (   0.02,-137.22) (   0.19,-136.48)   83.70                80
 01/03/2021   07:04:55   (   0.01,-137.21) (   0.82,-133.53)  419.24                80
 01/03/2021   19:28:43   (  -0.01,-137.21) (   0.30,-138.68)  166.36                73
 01/05/2021   19:16:38   (  -0.00,-137.20) (  -0.33,-135.72)  168.64                80
 01/06/2021   07:38:02   (   0.00,-137.19) (  -0.77,-140.91)  422.87                80
 01/08/2021   07:25:50   (   0.01,-137.17) (  -0.13,-137.95)   89.04                80
 01/10/2021   07:10:57   (   0.02,-137.14) (   0.46,-134.99)  244.09                80
 01/10/2021   19:32:13   (  -0.02,-137.13) (   0.60,-140.15)  342.44                80
 01/12/2021   19:20:00   (  -0.01,-137.10) (   0.02,-137.18)    9.85                80