Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 6 27.  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)
 06/27/2019   06:39:41   (   0.11,-127.97) (   0.28,-127.25)   83.03                80
 06/27/2019   19:03:36   (  -0.09,-128.00) (   0.85,-132.39)  499.59                80
 06/29/2019   06:27:30   (   0.11,-127.91) (   0.90,-124.29)  412.32                80
 06/29/2019   18:51:25   (  -0.09,-127.94) (   0.24,-129.43)  170.39                80
 07/01/2019   18:36:34   (  -0.10,-127.87) (  -0.37,-126.47)  157.95                80
 07/02/2019   07:00:37   (   0.07,-127.81) (  -0.75,-131.66)  438.50                80
 07/03/2019   18:24:23   (  -0.11,-127.79) (  -0.99,-123.51)  485.42                80
 07/04/2019   06:48:26   (   0.08,-127.72) (  -0.13,-128.70)  111.25                80
 07/06/2019   06:33:36   (   0.09,-127.64) (   0.49,-125.74)  215.50                80
 07/06/2019   18:57:30   (  -0.07,-127.66) (   0.65,-130.89)  368.33                80
 07/08/2019   18:45:19   (  -0.08,-127.57) (   0.03,-127.93)   41.70                80
 07/10/2019   18:30:28   (  -0.08,-127.48) (  -0.59,-124.97)  284.94                80