Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 5 17.  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)
 05/19/2019   06:33:20   (   0.12,-128.39) (   0.65,-125.79)  295.83                80
 05/19/2019   18:54:35   (  -0.11,-128.43) (   0.44,-130.95)  286.05                80
 05/21/2019   18:45:06   (  -0.12,-128.45) (  -0.20,-127.99)   51.59                80
 05/23/2019   18:32:56   (  -0.13,-128.46) (  -0.84,-125.04)  388.75                80
 05/24/2019   06:54:20   (   0.12,-128.43) (  -0.23,-130.24)  204.82                80
 05/26/2019   06:39:29   (   0.13,-128.44) (   0.35,-127.27)  132.07                80
 05/26/2019   19:03:25   (  -0.12,-128.47) (   0.74,-132.43)  450.57                80
 05/28/2019   06:27:20   (   0.14,-128.45) (   1.00,-124.32)  468.68                80
 05/28/2019   18:51:15   (  -0.13,-128.48) (   0.10,-129.48)  113.95                80
 05/30/2019   18:36:25   (  -0.13,-128.48) (  -0.54,-126.53)  222.32                80
 05/31/2019   07:00:29   (   0.12,-128.45) (  -0.57,-131.71)  370.88                80