Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 6 19.  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)
 06/20/2019   06:33:34   (   0.13,-128.16) (   0.62,-125.78)  270.15                80
 06/20/2019   18:57:29   (  -0.11,-128.19) (   0.46,-130.94)  312.01                80
 06/22/2019   18:42:38   (  -0.12,-128.14) (  -0.14,-127.98)   18.65                80
 06/24/2019   18:30:27   (  -0.13,-128.09) (  -0.75,-125.02)  349.06                80
 06/25/2019   06:54:31   (   0.10,-128.03) (  -0.37,-130.20)  247.04                80
 06/27/2019   06:39:40   (   0.11,-127.98) (   0.24,-127.24)   82.87                80
 06/29/2019   06:27:30   (   0.12,-127.91) (   0.91,-124.29)  412.09                80
 06/29/2019   18:51:25   (  -0.09,-127.94) (   0.24,-129.44)  171.13                80
 07/01/2019   18:36:34   (  -0.10,-127.86) (  -0.37,-126.48)  157.17                80
 07/02/2019   07:00:38   (   0.07,-127.81) (  -0.74,-131.67)  438.67                80