Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 6 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)
 06/01/2021   07:22:40   (  -0.03,-137.19) (  -0.19,-137.98)   89.90                80
 06/03/2021   07:13:10   (  -0.03,-137.19) (   0.46,-135.03)  246.48                80
 06/03/2021   19:31:45   (   0.03,-137.20) (   0.69,-140.17)  338.84                80
 06/05/2021   19:19:35   (   0.03,-137.20) (   0.03,-137.22)    2.83                80
 06/07/2021   19:10:05   (   0.02,-137.19) (  -0.63,-134.27)  332.56                80
 06/08/2021   07:31:29   (  -0.02,-137.18) (  -0.50,-139.46)  259.12                80
 06/10/2021   07:16:38   (  -0.02,-137.16) (   0.10,-136.50)   75.23                80
 06/12/2021   07:04:28   (  -0.01,-137.14) (   0.77,-133.55)  408.62                80
 06/12/2021   19:25:44   (   0.01,-137.14) (   0.32,-138.71)  177.63                80
 06/14/2021   19:16:13   (   0.00,-137.11) (  -0.29,-135.74)  155.01                80