Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 10 25.  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   07:11:12   (   0.05,-137.22) (   0.53,-135.03)  249.24                80
 10/25/2021   19:32:27   (  -0.05,-137.23) (   0.59,-140.18)  336.15                80
 10/27/2021   19:20:16   (  -0.04,-137.23) (  -0.06,-137.23)    2.24                80
 10/29/2021   19:10:44   (  -0.03,-137.22) (  -0.65,-134.26)  335.91                80
 10/30/2021   07:32:07   (   0.03,-137.21) (  -0.47,-139.45)  255.37                80
 11/01/2021   07:17:17   (   0.03,-137.20) (   0.19,-136.50)   79.77                80
 11/03/2021   07:05:05   (   0.03,-137.18) (   0.80,-133.54)  414.25                80
 11/03/2021   19:26:20   (  -0.03,-137.18) (   0.27,-138.70)  171.96                80
 11/05/2021   19:16:48   (  -0.03,-137.15) (  -0.34,-135.74)  161.52                80
 11/06/2021   07:38:12   (   0.02,-137.14) (  -0.77,-140.93)  430.25                80
 11/07/2021   19:04:36   (  -0.02,-137.12) (  -0.95,-132.77)  494.03                80