Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 7 1.  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)
 07/02/2021   06:39:42   (   0.11,-128.21) (   0.33,-127.26)  108.52                80
 07/02/2021   19:00:57   (  -0.10,-128.17) (   0.80,-132.40)  481.00                80
 07/04/2021   06:27:31   (   0.12,-128.16) (   0.96,-124.30)  439.54                80
 07/04/2021   18:48:46   (  -0.10,-128.13) (   0.16,-129.45)  149.92                80
 07/06/2021   18:39:15   (  -0.11,-128.07) (  -0.47,-126.49)  180.58                80
 07/07/2021   07:00:39   (   0.09,-128.08) (  -0.65,-131.68)  408.14                80
 07/09/2021   06:48:27   (   0.10,-128.02) (  -0.07,-128.71)   78.78                80
 07/11/2021   06:33:36   (   0.11,-127.95) (   0.57,-125.75)  249.99                80
 07/11/2021   18:54:51   (  -0.10,-127.90) (   0.56,-130.90)  341.36                80
 07/13/2021   18:42:40   (  -0.11,-127.83) (  -0.09,-127.94)   12.92                80
 07/15/2021   18:33:08   (  -0.11,-127.75) (  -0.68,-124.97)  315.28                80