Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 9 18.  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)
 09/19/2019   18:39:42   (  -0.29,-127.99) (  -0.63,-126.52)  168.37                80
 09/20/2019   06:58:25   (   0.30,-127.94) (  -0.50,-131.71)  427.98                80
 09/21/2019   18:27:31   (  -0.28,-127.93) (  -1.23,-123.56)  497.35                80
 09/22/2019   06:46:14   (   0.29,-127.87) (   0.11,-128.75)   99.28                80
 09/24/2019   06:36:44   (   0.29,-127.80) (   0.72,-125.79)  228.66                80
 09/24/2019   18:55:19   (  -0.30,-127.81) (   0.37,-130.95)  356.92                80
 09/26/2019   18:43:08   (  -0.30,-127.73) (  -0.24,-127.99)   29.43                80
 09/28/2019   18:33:37   (  -0.30,-127.65) (  -0.85,-125.03)  297.73                80
 09/29/2019   06:55:01   (   0.31,-127.60) (  -0.26,-130.21)  298.04                80
 10/01/2019   06:40:10   (   0.31,-127.51) (   0.35,-127.26)   28.78                80