Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2020 12 8.  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)
 12/09/2020   07:11:07   (   0.03,-137.22) (   0.52,-135.02)  250.92                80
 12/09/2020   19:35:02   (  -0.02,-137.22) (   0.60,-140.17)  334.75                80
 12/11/2020   19:20:11   (  -0.02,-137.22) (  -0.05,-137.22)    3.16                80
 12/13/2020   19:10:39   (  -0.02,-137.20) (  -0.65,-134.25)  335.41                80
 12/14/2020   07:32:02   (   0.02,-137.19) (  -0.47,-139.44)  255.99                80
 12/16/2020   07:17:12   (   0.02,-137.17) (   0.19,-136.49)   78.00                80
 12/18/2020   07:05:00   (   0.01,-137.15) (   0.80,-133.53)  411.58                80
 12/18/2020   19:26:14   (  -0.01,-137.15) (   0.33,-138.68)  174.95                80
 12/20/2020   19:16:42   (  -0.01,-137.12) (  -0.28,-135.72)  158.51                80
 12/21/2020   07:38:06   (   0.01,-137.11) (  -0.83,-140.91)  433.01                80