Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 4 27.  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)
 04/27/2021   19:15:57   (   0.05,-137.21) (  -0.28,-135.73)  168.33                80
 04/28/2021   07:37:21   (  -0.05,-137.20) (  -0.82,-140.92)  423.52                80
 04/30/2021   07:25:08   (  -0.04,-137.19) (  -0.22,-137.96)   88.33                80
 05/02/2021   07:10:16   (  -0.03,-137.17) (   0.45,-135.01)  246.21                80
 05/02/2021   19:31:31   (   0.03,-137.18) (   0.66,-140.17)  339.41                80
 05/04/2021   19:19:18   (   0.03,-137.16) (   0.05,-137.21)    5.45                80
 05/06/2021   19:09:45   (   0.02,-137.15) (  -0.56,-134.25)  329.13                80
 05/07/2021   07:31:09   (  -0.02,-137.13) (  -0.53,-139.44)  263.01                80
 05/09/2021   07:16:16   (  -0.02,-137.11) (   0.09,-136.48)   70.97                80