Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 9 10.  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)
 09/10/2019   18:45:44   (  -0.26,-128.22) (  -0.30,-127.99)   26.28                80
 09/12/2019   18:33:34   (  -0.25,-128.18) (  -0.94,-125.04)  357.35                80
 09/13/2019   06:52:17   (   0.28,-128.13) (  -0.19,-130.22)  238.22                80
 09/15/2019   06:42:47   (   0.28,-128.08) (   0.44,-127.27)   92.36                80
 09/15/2019   19:01:24   (  -0.29,-128.10) (   0.60,-132.44)  493.20                80
 09/17/2019   06:30:38   (   0.27,-128.03) (   1.06,-124.31)  422.43                80
 09/17/2019   18:49:13   (  -0.29,-128.04) (   0.05,-129.47)  163.15                80
 09/19/2019   18:39:44   (  -0.29,-127.98) (  -0.62,-126.53)  166.17                80
 09/20/2019   06:58:28   (   0.30,-127.95) (  -0.51,-131.71)  428.71                80
 09/21/2019   18:27:34   (  -0.28,-127.92) (  -1.22,-123.57)  494.60                80
 09/22/2019   06:46:18   (   0.29,-127.88) (   0.08,-128.76)  100.61                80