Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 5 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)
 05/21/2019   18:42:26   (  -0.12,-128.45) (  -0.24,-128.00)   51.67                80
 05/23/2019   18:30:16   (  -0.13,-128.46) (  -0.88,-125.05)  388.59                80
 05/24/2019   06:54:20   (   0.12,-128.42) (  -0.26,-130.23)  205.54                80
 05/26/2019   06:39:30   (   0.13,-128.43) (   0.38,-127.28)  131.07                80
 05/26/2019   19:03:26   (  -0.12,-128.47) (   0.71,-132.44)  451.06                80
 05/28/2019   06:27:20   (   0.14,-128.43) (   1.03,-124.33)  467.48                80
 05/28/2019   18:48:36   (  -0.13,-128.47) (   0.06,-129.48)  114.68                80
 05/30/2019   18:36:25   (  -0.13,-128.47) (  -0.52,-126.52)  221.40                80
 05/31/2019   07:00:29   (   0.12,-128.44) (  -0.60,-131.71)  372.44                80
 06/02/2019   06:48:19   (   0.12,-128.43) (   0.05,-128.76)   37.27                80