Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 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)
 09/21/2020   18:36:55   (   0.06,-128.30) (  -0.33,-126.46)  208.87                80
 09/22/2020   07:00:59   (  -0.07,-128.36) (  -0.80,-131.65)  375.00                80
 09/24/2020   06:48:49   (  -0.08,-128.39) (  -0.12,-128.70)   35.74                80
 09/26/2020   06:33:58   (  -0.08,-128.41) (   0.49,-125.75)  303.27                80
 09/26/2020   18:57:53   (   0.09,-128.37) (   0.65,-130.89)  287.51                80
 09/28/2020   18:43:03   (   0.09,-128.39) (  -0.02,-127.95)   51.30                80
 09/30/2020   18:30:52   (   0.09,-128.42) (  -0.64,-124.99)  389.93                80
 10/01/2020   06:54:56   (  -0.10,-128.47) (  -0.48,-130.18)  194.07                80
 10/03/2020   06:40:06   (  -0.09,-128.49) (   0.20,-127.23)  144.28                80
 10/03/2020   19:04:01   (   0.10,-128.45) (   0.95,-132.38)  446.87                80