Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 10 23.  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)
 10/25/2021   07:11:11   (   0.05,-137.22) (   0.51,-135.03)  249.32                80
 10/25/2021   19:32:27   (  -0.05,-137.23) (   0.55,-140.19)  336.24                80
 10/27/2021   19:22:55   (  -0.04,-137.22) (  -0.04,-137.22)    0.33                80
 10/29/2021   19:10:44   (  -0.03,-137.22) (  -0.69,-134.27)  335.86                80
 10/30/2021   07:32:08   (   0.03,-137.21) (  -0.43,-139.46)  255.25                80
 11/01/2021   07:17:16   (   0.03,-137.20) (   0.17,-136.49)   79.87                80
 11/03/2021   07:05:05   (   0.03,-137.18) (   0.83,-133.54)  414.38                80
 11/03/2021   19:26:20   (  -0.03,-137.18) (   0.29,-138.69)  172.00                80
 11/05/2021   19:16:48   (  -0.03,-137.15) (  -0.31,-135.73)  161.46                80
 11/06/2021   07:38:12   (   0.02,-137.14) (  -0.80,-140.92)  430.12                80