Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 8 28.  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)
 08/28/2021   06:36:37   (   0.25,-128.29) (   0.78,-125.79)  283.31                80
 08/28/2021   18:55:13   (  -0.28,-128.24) (   0.30,-130.95)  308.91                80
 08/30/2021   18:45:42   (  -0.27,-128.24) (  -0.30,-127.99)   27.13                80
 09/01/2021   18:33:32   (  -0.26,-128.23) (  -0.96,-125.04)  362.23                80
 09/02/2021   06:52:17   (   0.29,-128.27) (  -0.11,-130.24)  223.71                80
 09/04/2021   06:42:46   (   0.29,-128.26) (   0.49,-127.28)  110.70                80
 09/04/2021   19:01:22   (  -0.32,-128.20) (   0.59,-132.44)  482.60                80
 09/06/2021   06:30:35   (   0.28,-128.24) (   1.09,-124.32)  444.71                80
 09/06/2021   18:49:11   (  -0.31,-128.18) (  -0.01,-129.48)  148.62                80
 09/08/2021   18:39:41   (  -0.31,-128.16) (  -0.66,-126.53)  184.97                80
 09/09/2021   06:58:26   (   0.34,-128.20) (  -0.40,-131.73)  400.62                80