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   07:04:14   (  -0.04,-137.20) (   0.71,-133.52)  417.12                80
 04/25/2021   19:25:30   (   0.04,-137.20) (   0.34,-138.69)  168.55                80
 04/27/2021   19:15:57   (   0.04,-137.19) (  -0.26,-135.73)  166.45                80
 04/28/2021   07:37:21   (  -0.04,-137.18) (  -0.84,-140.92)  425.27                80
 04/30/2021   07:25:09   (  -0.03,-137.16) (  -0.18,-137.97)   91.59                80
 05/02/2021   07:10:16   (  -0.03,-137.13) (   0.43,-135.01)  241.51                80
 05/02/2021   19:31:31   (   0.02,-137.13) (   0.68,-140.16)  344.99                80
 05/04/2021   19:19:18   (   0.02,-137.10) (   0.07,-137.20)   12.65                80
 05/06/2021   19:09:46   (   0.02,-137.07) (  -0.60,-134.25)  320.55                80
 05/07/2021   07:31:08   (  -0.01,-137.06) (  -0.55,-139.44)  271.46                80