Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 4 24.  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)
 04/25/2021   07:04:15   (  -0.04,-137.20) (   0.74,-133.53)  417.07                80
 04/25/2021   19:25:29   (   0.04,-137.20) (   0.37,-138.68)  168.58                80
 04/27/2021   19:15:57   (   0.04,-137.19) (  -0.29,-135.73)  166.42                80
 04/28/2021   07:37:21   (  -0.04,-137.18) (  -0.81,-140.93)  425.31                80
 04/30/2021   07:25:08   (  -0.03,-137.16) (  -0.21,-137.96)   91.58                80
 05/02/2021   07:10:15   (  -0.03,-137.13) (   0.40,-135.00)  241.47                80
 05/02/2021   19:31:31   (   0.02,-137.13) (   0.65,-140.17)  345.07                80
 05/04/2021   19:19:18   (   0.02,-137.10) (   0.05,-137.21)   12.33                80
 05/06/2021   19:09:45   (   0.02,-137.07) (  -0.56,-134.25)  320.44                80
 05/07/2021   07:31:09   (  -0.01,-137.06) (  -0.53,-139.44)  271.56                80