Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 4 14.  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)
 04/14/2021   07:25:17   (  -0.04,-137.20) (  -0.19,-137.96)   86.48                80
 04/16/2021   07:10:25   (  -0.04,-137.19) (   0.45,-135.01)  249.12                80
 04/16/2021   19:31:40   (   0.04,-137.20) (   0.67,-140.16)  336.88                80
 04/18/2021   19:19:28   (   0.03,-137.19) (   0.02,-137.21)    2.90                80
 04/20/2021   19:09:55   (   0.03,-137.17) (  -0.56,-134.24)  331.46                80
 04/21/2021   07:31:19   (  -0.03,-137.15) (  -0.54,-139.44)  260.30                80
 04/23/2021   07:16:27   (  -0.02,-137.13) (   0.11,-136.49)   72.95                80
 04/25/2021   07:06:55   (  -0.02,-137.10) (   0.76,-133.53)  405.76                80
 04/25/2021   19:25:30   (   0.02,-137.10) (   0.36,-138.69)  181.04                80
 04/27/2021   19:15:57   (   0.02,-137.06) (  -0.24,-135.72)  150.91                80