Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 9 11.  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)
 09/12/2020   18:42:57   (   0.05,-128.11) (   0.03,-127.93)   20.14                80
 09/14/2020   18:30:47   (   0.05,-128.15) (  -0.63,-124.98)  360.78                80
 09/15/2020   06:54:51   (  -0.06,-128.21) (  -0.49,-130.17)  223.50                80
 09/17/2020   06:40:01   (  -0.05,-128.25) (   0.18,-127.22)  116.73                80
 09/17/2020   19:03:56   (   0.06,-128.21) (   0.97,-132.37)  473.15                80
 09/19/2020   06:27:50   (  -0.05,-128.28) (   0.79,-124.26)  456.62                80
 09/19/2020   18:51:46   (   0.06,-128.25) (   0.30,-129.42)  133.37                80
 09/21/2020   18:36:55   (   0.06,-128.27) (  -0.32,-126.46)  205.90                80
 09/22/2020   07:00:59   (  -0.07,-128.33) (  -0.80,-131.65)  378.50                80
 09/24/2020   06:48:49   (  -0.07,-128.35) (  -0.13,-128.70)   39.99                80