Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 10 9.  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)
 10/10/2019   06:34:07   (   0.30,-127.91) (   0.75,-125.80)  240.18                80
 10/10/2019   18:55:23   (  -0.30,-127.91) (   0.33,-130.96)  346.86                80
 10/12/2019   18:43:12   (  -0.30,-127.98) (  -0.30,-128.00)    3.07                80
 10/14/2019   18:33:41   (  -0.30,-128.04) (  -0.93,-125.05)  340.26                80
 10/15/2019   06:55:05   (   0.31,-128.08) (  -0.18,-130.24)  245.40                80
 10/17/2019   06:40:15   (   0.30,-128.14) (   0.51,-127.29)   97.08                80
 10/17/2019   19:01:30   (  -0.30,-128.12) (   0.63,-132.44)  491.45                80
 10/19/2019   06:28:03   (   0.30,-128.19) (   1.09,-124.33)  438.66                80
 10/19/2019   18:49:19   (  -0.30,-128.17) (  -0.00,-129.49)  149.90                80
 10/21/2019   18:39:48   (  -0.29,-128.21) (  -0.64,-126.53)  190.91                80
 10/22/2019   07:01:12   (   0.29,-128.26) (  -0.47,-131.72)  394.26                80