Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 5 3.  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)
 05/03/2019   06:33:09   (   0.09,-128.12) (   0.60,-125.77)  267.40                80
 05/03/2019   18:54:25   (  -0.09,-128.16) (   0.50,-130.93)  314.80                80
 05/05/2019   18:44:56   (  -0.10,-128.21) (  -0.14,-127.98)   25.40                80
 05/07/2019   18:32:48   (  -0.10,-128.25) (  -0.81,-125.05)  364.47                80
 05/08/2019   06:54:11   (   0.10,-128.23) (  -0.35,-130.23)  228.10                80
 05/10/2019   06:39:25   (   0.11,-128.26) (   0.34,-127.30)  109.68                80
 05/10/2019   19:00:40   (  -0.11,-128.29) (   0.79,-132.45)  473.71                80
 05/12/2019   06:27:17   (   0.11,-128.28) (   0.95,-124.35)  446.67                80
 05/12/2019   18:48:33   (  -0.11,-128.31) (   0.13,-129.52)  136.77                80
 05/14/2019   18:39:06   (  -0.12,-128.33) (  -0.49,-126.58)  199.85                80
 05/15/2019   07:00:31   (   0.11,-128.32) (  -0.63,-131.77)  392.80                80