Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 9 29.  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)
 09/30/2021   07:19:52   (   0.04,-137.19) (   0.19,-136.49)   79.61                80
 10/02/2021   07:07:41   (   0.03,-137.17) (   0.79,-133.53)  413.73                80
 10/02/2021   19:26:17   (  -0.03,-137.18) (   0.29,-138.69)  172.25                80
 10/04/2021   19:16:46   (  -0.03,-137.15) (  -0.31,-135.73)  161.31                80
 10/05/2021   07:38:11   (   0.03,-137.14) (  -0.75,-140.93)  430.71                80
 10/06/2021   19:04:36   (  -0.03,-137.13) (  -0.98,-132.78)  494.23                80
 10/07/2021   07:26:00   (   0.03,-137.11) (  -0.14,-137.97)   97.97                80
 10/09/2021   07:13:49   (   0.03,-137.07) (   0.47,-135.01)  233.94                80
 10/09/2021   19:32:24   (  -0.03,-137.07) (   0.61,-140.17)  352.77                80
 10/11/2021   19:20:14   (  -0.03,-137.02) (  -0.01,-137.22)   22.12                80