Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 5 12.  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)
 05/12/2019   06:27:10   (   0.11,-128.30) (   0.96,-124.30)  454.73                80
 05/12/2019   18:48:26   (  -0.11,-128.34) (   0.13,-129.46)  127.90                80
 05/14/2019   18:38:57   (  -0.12,-128.37) (  -0.53,-126.52)  211.14                80
 05/15/2019   07:00:20   (   0.11,-128.35) (  -0.62,-131.70)  381.03                80
 05/17/2019   06:48:11   (   0.11,-128.38) (   0.03,-128.75)   42.42                80
 05/19/2019   06:33:23   (   0.12,-128.40) (   0.68,-125.80)  295.62                80
 05/19/2019   18:57:18   (  -0.11,-128.43) (   0.42,-130.96)  287.71                80
 05/21/2019   18:42:29   (  -0.12,-128.45) (  -0.21,-128.01)   49.64                80
 05/23/2019   18:30:20   (  -0.13,-128.46) (  -0.84,-125.06)  386.51                80
 05/24/2019   06:54:25   (   0.12,-128.44) (  -0.25,-130.26)  205.72                80