Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 2 20.  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)
 02/21/2021   18:30:33   (   0.14,-128.11) (  -0.52,-124.94)  359.38                80
 02/22/2021   06:54:37   (  -0.15,-128.04) (  -0.58,-130.13)  237.42                80
 02/24/2021   06:39:45   (  -0.14,-128.09) (   0.05,-127.18)  103.57                80
 02/24/2021   19:03:40   (   0.16,-128.17) (   1.07,-132.33)  473.45                80
 02/26/2021   06:27:33   (  -0.14,-128.13) (   0.68,-124.22)  444.22                80
 02/26/2021   18:51:29   (   0.15,-128.21) (   0.37,-129.39)  132.88                80
 02/28/2021   18:36:36   (   0.15,-128.25) (  -0.21,-126.42)  207.54                80
 03/01/2021   07:00:40   (  -0.16,-128.19) (  -0.90,-131.61)  389.37                80
 03/03/2021   06:48:28   (  -0.16,-128.22) (  -0.26,-128.66)   49.72                80
 03/05/2021   06:33:36   (  -0.15,-128.25) (   0.39,-125.70)  289.13                80
 03/05/2021   18:54:52   (   0.16,-128.32) (   0.67,-130.87)  288.99                80