Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 7 23.  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)
 07/24/2020   06:33:36   (   0.00,-128.40) (   0.56,-125.75)  301.14                80
 07/24/2020   18:54:52   (  -0.01,-128.39) (   0.51,-130.91)  286.79                80
 07/26/2020   18:45:21   (  -0.01,-128.39) (  -0.10,-127.95)   50.32                80
 07/28/2020   18:33:10   (  -0.01,-128.40) (  -0.72,-124.99)  386.84                80
 07/29/2020   06:54:35   (   0.01,-128.42) (  -0.36,-130.19)  201.19                80
 07/31/2020   06:39:44   (   0.01,-128.41) (   0.26,-127.23)  134.41                80
 07/31/2020   19:01:00   (  -0.02,-128.39) (   0.81,-132.39)  454.89                80
 08/02/2020   06:27:33   (   0.02,-128.40) (   0.88,-124.27)  469.71                80
 08/02/2020   18:48:49   (  -0.02,-128.38) (   0.19,-129.43)  119.54                80
 08/04/2020   18:39:18   (  -0.02,-128.37) (  -0.42,-126.47)  215.75                80
 08/05/2020   07:00:42   (   0.02,-128.39) (  -0.70,-131.66)  371.66                80