Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 9 12.  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)
 09/12/2019   18:33:33   (  -0.25,-128.18) (  -0.90,-125.03)  357.47                80
 09/13/2019   06:52:18   (   0.28,-128.13) (  -0.18,-130.23)  238.48                80
 09/15/2019   06:42:48   (   0.28,-128.08) (   0.45,-127.27)   91.96                80
 09/15/2019   19:01:24   (  -0.29,-128.10) (   0.64,-132.43)  493.25                80
 09/17/2019   06:30:38   (   0.27,-128.03) (   1.07,-124.32)  421.93                80
 09/17/2019   18:49:14   (  -0.29,-128.04) (   0.03,-129.48)  163.31                80
 09/19/2019   18:39:44   (  -0.29,-127.98) (  -0.57,-126.52)  165.86                80
 09/20/2019   06:58:28   (   0.30,-127.94) (  -0.51,-131.72)  429.43                80
 09/21/2019   18:27:35   (  -0.28,-127.92) (  -1.22,-123.57)  494.14                80
 09/22/2019   06:46:19   (   0.29,-127.87) (   0.08,-128.76)  101.48                80
 09/24/2019   06:36:50   (   0.29,-127.79) (   0.72,-125.81)  225.68                80
 09/24/2019   18:55:25   (  -0.30,-127.79) (   0.40,-130.97)  361.43                80