Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 1 1.  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) (   0.18,-136.48)   83.51                80
 01/03/2021   07:04:55   (   0.01,-137.21) (   0.81,-133.52)  418.97                80
 01/03/2021   19:28:50   (  -0.00,-137.21) (   0.31,-138.67)  166.53                80
 01/05/2021   19:16:38   (   0.00,-137.20) (  -0.32,-135.72)  168.34                80
 01/06/2021   07:38:02   (  -0.00,-137.18) (  -0.78,-140.91)  423.33                80
 01/08/2021   07:25:50   (   0.01,-137.16) (  -0.14,-137.95)   89.69                80
 01/10/2021   07:10:57   (   0.02,-137.13) (   0.44,-134.98)  243.20                80
 01/10/2021   19:32:13   (  -0.02,-137.13) (   0.61,-140.15)  343.24                80
 01/12/2021   19:20:00   (  -0.01,-137.09) (   0.03,-137.18)   10.94                80
 01/14/2021   19:10:28   (  -0.01,-137.05) (  -0.62,-134.22)  321.30                80