Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 8 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 08/30/2021   18:45:43   (  -0.28,-128.24) (  -0.35,-128.00)   27.39                80
 09/01/2021   18:33:32   (  -0.26,-128.23) (  -0.96,-125.04)  362.51                80
 09/02/2021   06:52:17   (   0.29,-128.27) (  -0.10,-130.24)  223.80                80
 09/04/2021   06:42:46   (   0.29,-128.25) (   0.51,-127.28)  110.68                80
 09/04/2021   19:01:21   (  -0.32,-128.20) (   0.57,-132.44)  482.20                80
 09/06/2021   06:30:35   (   0.29,-128.23) (   1.13,-124.33)  444.77                80
 09/06/2021   18:49:10   (  -0.31,-128.18) (  -0.05,-129.49)  148.10                80
 09/08/2021   18:39:40   (  -0.31,-128.16) (  -0.68,-126.53)  185.59                80
 09/09/2021   06:58:24   (   0.34,-128.20) (  -0.38,-131.73)  400.41                80
 09/11/2021   06:46:12   (   0.33,-128.17) (   0.19,-128.76)   67.34                80
 09/13/2021   06:36:41   (   0.32,-128.13) (   0.82,-125.80)  264.94                80