Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 10 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)
 10/27/2021   19:20:16   (  -0.05,-137.23) (  -0.07,-137.23)    1.91                80
 10/29/2021   19:10:44   (  -0.04,-137.23) (  -0.66,-134.26)  336.57                80
 10/30/2021   07:32:08   (   0.04,-137.22) (  -0.46,-139.45)  254.82                80
 11/01/2021   07:17:17   (   0.04,-137.21) (   0.20,-136.50)   80.71                80
 11/03/2021   07:05:05   (   0.04,-137.20) (   0.81,-133.54)  415.60                80
 11/03/2021   19:26:20   (  -0.04,-137.20) (   0.25,-138.70)  170.27                80
 11/05/2021   19:16:49   (  -0.04,-137.18) (  -0.35,-135.74)  163.62                80
 11/06/2021   07:38:12   (   0.03,-137.16) (  -0.76,-140.93)  428.27                80
 11/07/2021   19:04:37   (  -0.03,-137.14) (  -0.97,-132.78)  496.54                80
 11/08/2021   07:26:00   (   0.03,-137.13) (  -0.15,-137.97)   95.56                80