Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 4 22.  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)
 04/23/2021   07:16:27   (  -0.04,-137.20) (   0.14,-136.49)   81.35                80
 04/25/2021   07:04:14   (  -0.04,-137.20) (   0.73,-133.53)  416.98                80
 04/25/2021   19:25:29   (   0.04,-137.20) (   0.38,-138.68)  169.08                80
 04/27/2021   19:15:57   (   0.04,-137.19) (  -0.28,-135.73)  165.74                80
 04/28/2021   07:37:21   (  -0.04,-137.18) (  -0.82,-140.92)  425.67                80
 04/29/2021   19:03:44   (   0.04,-137.17) (  -0.88,-132.77)  499.54                80
 04/30/2021   07:25:08   (  -0.03,-137.16) (  -0.22,-137.96)   92.12                80
 05/02/2021   07:10:16   (  -0.03,-137.13) (   0.45,-135.01)  240.77                80
 05/02/2021   19:31:31   (   0.02,-137.12) (   0.66,-140.17)  346.17                80
 05/04/2021   19:19:18   (   0.02,-137.09) (   0.05,-137.21)   13.62                80