Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 6 21.  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)
 06/22/2019   18:42:38   (  -0.12,-128.14) (  -0.15,-127.98)   18.80                80
 06/24/2019   18:30:27   (  -0.13,-128.09) (  -0.75,-125.01)  349.11                80
 06/25/2019   06:54:31   (   0.10,-128.03) (  -0.37,-130.20)  247.31                80
 06/27/2019   06:39:40   (   0.11,-127.97) (   0.24,-127.24)   82.47                80
 06/29/2019   06:27:30   (   0.11,-127.91) (   0.91,-124.29)  411.60                80
 06/29/2019   18:51:25   (  -0.09,-127.93) (   0.23,-129.44)  171.33                80
 07/01/2019   18:36:34   (  -0.10,-127.86) (  -0.38,-126.48)  156.85                80
 07/02/2019   07:00:38   (   0.07,-127.80) (  -0.74,-131.67)  439.35                80
 07/03/2019   18:24:23   (  -0.11,-127.78) (  -1.00,-123.52)  484.18                80
 07/04/2019   06:48:27   (   0.08,-127.72) (  -0.12,-128.71)  112.26                80