Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2020 12 30.  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)
 12/30/2020   07:31:59   (   0.01,-137.22) (  -0.49,-139.43)  252.08                80
 01/01/2021   07:17:07   (   0.01,-137.21) (   0.14,-136.47)   83.14                80
 01/03/2021   07:04:55   (  -0.01,-137.19) (   0.77,-133.52)  418.00                80
 01/03/2021   19:28:49   (   0.01,-137.19) (   0.35,-138.67)  167.94                80
 01/05/2021   19:16:38   (   0.01,-137.17) (  -0.29,-135.71)  166.20                80
 01/06/2021   07:38:01   (  -0.02,-137.16) (  -0.81,-140.90)  425.39                80
 01/07/2021   19:04:26   (   0.01,-137.15) (  -0.93,-132.75)  499.48                80
 01/08/2021   07:25:49   (  -0.01,-137.13) (  -0.17,-137.94)   92.36                80
 01/10/2021   07:10:57   (   0.01,-137.09) (   0.48,-134.99)  239.55                80
 01/10/2021   19:32:12   (  -0.02,-137.09) (   0.64,-140.14)  347.45                80
 01/12/2021   19:20:00   (  -0.01,-137.04) (  -0.01,-137.18)   15.93                80