Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 1 18.  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)
 01/18/2020   18:30:44   (  -0.01,-128.42) (  -0.75,-124.98)  391.17                80
 01/19/2020   06:54:48   (   0.00,-128.44) (  -0.36,-130.17)  197.09                80
 01/21/2020   06:39:56   (   0.01,-128.44) (   0.26,-127.22)  138.52                80
 01/21/2020   19:03:51   (  -0.00,-128.42) (   0.86,-132.37)  449.79                80
 01/23/2020   06:27:44   (   0.01,-128.43) (   0.88,-124.26)  473.75                80
 01/23/2020   18:51:40   (  -0.01,-128.41) (   0.18,-129.42)  114.70                80
 01/25/2020   18:36:48   (  -0.00,-128.40) (  -0.45,-126.46)  220.42                80
 01/26/2020   07:00:51   (  -0.00,-128.41) (  -0.72,-131.64)  368.31                80
 01/28/2020   06:48:39   (  -0.01,-128.40) (  -0.09,-128.68)   33.30                80
 01/30/2020   06:33:47   (  -0.01,-128.38) (   0.55,-125.73)  301.51                80
 01/30/2020   18:57:42   (   0.02,-128.36) (   0.58,-130.88)  287.01                80