Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 1 7.  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)
 01/07/2020   06:27:48   (   0.05,-128.39) (   0.90,-124.26)  469.08                80
 01/07/2020   18:51:44   (  -0.04,-128.37) (   0.16,-129.42)  119.71                80
 01/09/2020   18:36:52   (  -0.04,-128.38) (  -0.43,-126.46)  218.00                80
 01/10/2020   07:00:57   (   0.03,-128.42) (  -0.63,-131.66)  368.63                80
 01/12/2020   06:48:45   (   0.03,-128.42) (  -0.05,-128.70)   31.87                80
 01/14/2020   06:33:54   (   0.02,-128.43) (   0.58,-125.75)  304.61                80
 01/14/2020   18:57:50   (  -0.01,-128.40) (   0.49,-130.91)  284.88                80
 01/16/2020   18:42:59   (  -0.01,-128.40) (  -0.13,-127.95)   51.16                80
 01/18/2020   18:30:48   (  -0.02,-128.40) (  -0.75,-125.00)  386.54                80
 01/19/2020   06:54:52   (   0.01,-128.42) (  -0.37,-130.19)  200.53                80