Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 9 20.  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)
 09/20/2019   06:58:25   (   0.30,-127.94) (  -0.49,-131.71)  427.88                80
 09/21/2019   18:27:31   (  -0.28,-127.93) (  -1.24,-123.56)  497.93                80
 09/22/2019   06:46:14   (   0.29,-127.87) (   0.11,-128.75)   98.97                80
 09/24/2019   06:36:43   (   0.29,-127.80) (   0.72,-125.79)  229.17                80
 09/24/2019   18:55:19   (  -0.30,-127.81) (   0.36,-130.95)  356.01                80
 09/26/2019   18:43:08   (  -0.30,-127.74) (  -0.25,-127.99)   28.32                80
 09/28/2019   18:33:37   (  -0.30,-127.66) (  -0.86,-125.03)  299.05                80
 09/29/2019   06:55:01   (   0.31,-127.61) (  -0.25,-130.22)  297.03                80
 10/01/2019   06:41:07   (   0.31,-127.52) (   0.36,-127.26)   29.97                23
 10/03/2019   06:30:39   (   0.30,-127.43) (   0.98,-124.30)  356.54                80
 10/03/2019   18:49:15   (  -0.31,-127.43) (   0.11,-129.46)  229.93                80