Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 6 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)
 06/28/2021   07:07:12   (  -0.02,-137.18) (   0.77,-133.53)  415.35                80
 06/28/2021   19:25:47   (   0.01,-137.19) (   0.36,-138.68)  170.28                80
 06/30/2021   19:16:17   (   0.01,-137.18) (  -0.33,-135.74)  165.12                80
 07/01/2021   07:35:01   (  -0.01,-137.17) (  -0.80,-140.92)  426.46                80
 07/03/2021   07:22:50   (  -0.01,-137.16) (  -0.17,-137.97)   91.45                80
 07/05/2021   07:13:19   (  -0.02,-137.14) (   0.47,-135.01)  243.04                80
 07/05/2021   19:31:54   (   0.01,-137.14) (   0.66,-140.16)  343.07                80
 07/07/2021   19:19:43   (   0.02,-137.11) (   0.02,-137.20)    9.67                80
 07/09/2021   19:10:12   (   0.02,-137.08) (  -0.62,-134.24)  323.01                80
 07/10/2021   07:31:35   (  -0.02,-137.06) (  -0.51,-139.43)  269.12                80