Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 4 17.  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)
 04/18/2021   19:22:07   (   0.04,-137.18) (   0.07,-137.20)    3.83                80
 04/20/2021   19:09:55   (   0.03,-137.17) (  -0.58,-134.25)  331.51                80
 04/21/2021   07:31:19   (  -0.03,-137.15) (  -0.53,-139.44)  260.17                80
 04/23/2021   07:16:27   (  -0.03,-137.13) (   0.12,-136.49)   73.04                80
 04/25/2021   07:04:14   (  -0.03,-137.10) (   0.71,-133.52)  405.81                80
 04/25/2021   19:25:30   (   0.03,-137.09) (   0.34,-138.69)  181.06                80
 04/27/2021   19:15:57   (   0.03,-137.05) (  -0.25,-135.73)  150.85                80
 04/28/2021   07:34:41   (  -0.03,-137.04) (  -0.84,-140.92)  441.24                80
 04/29/2021   19:03:44   (   0.02,-137.01) (  -0.85,-132.76)  481.77                80
 04/30/2021   07:22:28   (  -0.02,-136.99) (  -0.24,-137.96)  110.59                80