Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 6 28.  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)
 06/29/2019   06:27:29   (   0.11,-127.91) (   0.87,-124.28)  412.51                80
 06/29/2019   18:51:25   (  -0.09,-127.94) (   0.21,-129.44)  170.26                80
 07/01/2019   18:36:34   (  -0.10,-127.87) (  -0.40,-126.48)  158.11                80
 07/02/2019   07:00:38   (   0.07,-127.81) (  -0.72,-131.67)  438.28                80
 07/03/2019   18:24:23   (  -0.11,-127.79) (  -1.02,-123.52)  485.62                80
 07/04/2019   06:48:27   (   0.08,-127.73) (  -0.10,-128.71)  111.01                80
 07/06/2019   06:33:36   (   0.09,-127.64) (   0.51,-125.75)  215.80                80
 07/06/2019   18:57:31   (  -0.07,-127.66) (   0.63,-130.89)  368.05                80
 07/08/2019   18:45:20   (  -0.08,-127.57) (   0.01,-127.93)   41.29                80
 07/10/2019   18:30:29   (  -0.08,-127.48) (  -0.62,-124.98)  285.25                80
 07/11/2019   06:54:33   (   0.05,-127.42) (  -0.50,-130.16)  310.80                80