Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 9 19.  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)
 09/19/2020   06:27:51   (  -0.05,-128.30) (   0.83,-124.27)  459.01                80
 09/19/2020   18:51:46   (   0.06,-128.27) (   0.31,-129.42)  131.12                80
 09/21/2020   18:36:55   (   0.06,-128.30) (  -0.30,-126.46)  208.92                80
 09/22/2020   07:01:00   (  -0.07,-128.36) (  -0.76,-131.66)  374.99                80
 09/24/2020   06:48:49   (  -0.08,-128.39) (  -0.15,-128.70)   35.66                80
 09/26/2020   06:33:58   (  -0.08,-128.41) (   0.46,-125.74)  303.28                80
 09/26/2020   18:57:53   (   0.09,-128.37) (   0.62,-130.90)  287.47                80
 09/28/2020   18:43:03   (   0.09,-128.39) (   0.00,-127.94)   51.31                80
 09/30/2020   18:30:53   (   0.09,-128.42) (  -0.67,-124.99)  389.96                80
 10/01/2020   06:54:56   (  -0.10,-128.47) (  -0.44,-130.18)  194.07                80