Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 12 28.  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)
 12/29/2019   06:33:56   (   0.07,-128.25) (   0.61,-125.75)  284.96                80
 12/29/2019   18:57:51   (  -0.06,-128.22) (   0.51,-130.90)  304.23                80
 12/31/2019   18:42:59   (  -0.06,-128.26) (  -0.11,-127.94)   36.50                80
 01/02/2020   18:30:47   (  -0.06,-128.30) (  -0.74,-124.98)  376.94                80
 01/03/2020   06:54:51   (   0.04,-128.35) (  -0.37,-130.17)  207.73                80
 01/05/2020   06:40:00   (   0.05,-128.38) (   0.32,-127.22)  132.14                80
 01/05/2020   19:03:55   (  -0.04,-128.35) (   0.80,-132.38)  457.57                80
 01/07/2020   06:27:48   (   0.05,-128.41) (   0.95,-124.27)  471.24                80
 01/07/2020   18:51:43   (  -0.04,-128.37) (   0.17,-129.42)  118.67                80
 01/09/2020   18:36:51   (  -0.04,-128.39) (  -0.46,-126.46)  219.46                80
 01/10/2020   07:00:55   (   0.03,-128.43) (  -0.63,-131.65)  365.83                80