Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 9 21.  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) (  -0.30,-126.46)  208.85                80
 09/22/2020   07:00:59   (  -0.08,-128.36) (  -0.77,-131.66)  374.96                80
 09/24/2020   06:48:48   (  -0.08,-128.39) (  -0.15,-128.70)   35.69                80
 09/26/2020   06:33:58   (  -0.08,-128.41) (   0.46,-125.74)  303.22                80
 09/26/2020   18:57:53   (   0.09,-128.37) (   0.62,-130.90)  287.68                80
 09/28/2020   18:43:02   (   0.09,-128.39) (   0.00,-127.94)   51.06                80
 09/30/2020   18:30:51   (   0.09,-128.41) (  -0.61,-124.98)  389.68                80
 10/01/2020   06:54:56   (  -0.10,-128.47) (  -0.44,-130.18)  194.23                80
 10/03/2020   06:40:05   (  -0.10,-128.49) (   0.18,-127.22)  144.04                80
 10/03/2020   19:04:00   (   0.11,-128.44) (   0.97,-132.37)  447.20                80