Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 5 27.  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)
 05/27/2021   07:07:00   (  -0.04,-137.19) (   0.71,-133.54)  414.57                80
 05/27/2021   19:25:36   (   0.04,-137.20) (   0.38,-138.69)  170.83                80
 05/29/2021   19:16:06   (   0.03,-137.18) (  -0.27,-135.74)  163.61                80
 05/30/2021   07:37:30   (  -0.03,-137.17) (  -0.86,-140.93)  428.48                80
 05/31/2021   19:03:56   (   0.03,-137.17) (  -0.92,-132.79)  497.82                80
 06/01/2021   07:25:20   (  -0.03,-137.15) (  -0.21,-137.98)   94.29                80
 06/03/2021   07:10:30   (  -0.02,-137.13) (   0.44,-135.03)  239.86                80
 06/03/2021   19:31:46   (   0.02,-137.14) (   0.65,-140.18)  345.89                80
 06/05/2021   19:19:35   (   0.02,-137.12) (   0.05,-137.22)   12.16                80
 06/07/2021   19:10:05   (   0.02,-137.09) (  -0.60,-134.27)  321.06                80
 06/08/2021   07:31:28   (  -0.02,-137.07) (  -0.52,-139.46)  271.22                80