Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 4 28.  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)
 04/28/2021   07:37:20   (  -0.05,-137.19) (  -0.85,-140.92)  423.65                80
 04/30/2021   07:25:09   (  -0.05,-137.18) (  -0.19,-137.97)   88.78                80
 05/02/2021   07:10:16   (  -0.04,-137.17) (   0.42,-135.01)  245.51                80
 05/02/2021   19:31:30   (   0.04,-137.17) (   0.69,-140.16)  340.04                80
 05/04/2021   19:19:18   (   0.03,-137.15) (   0.02,-137.21)    6.62                80
 05/06/2021   19:09:45   (   0.03,-137.13) (  -0.59,-134.25)  327.95                80
 05/07/2021   07:31:09   (  -0.03,-137.12) (  -0.50,-139.45)  264.40                80
 05/09/2021   07:16:16   (  -0.03,-137.09) (   0.12,-136.49)   69.30                80
 05/11/2021   07:04:03   (  -0.02,-137.06) (   0.74,-133.53)  402.31                80
 05/11/2021   19:25:18   (   0.02,-137.07) (   0.37,-138.68)  183.80                80