Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 12 25.  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)
 12/25/2019   07:01:00   (   0.07,-128.16) (  -0.67,-131.66)  397.23                80
 12/27/2019   06:48:48   (   0.07,-128.21) (  -0.05,-128.70)   55.85                80
 12/29/2019   06:33:57   (   0.07,-128.25) (   0.63,-125.75)  285.44                80
 12/29/2019   18:57:51   (  -0.06,-128.23) (   0.49,-130.90)  303.65                80
 12/31/2019   18:43:00   (  -0.06,-128.27) (  -0.13,-127.94)   37.42                80
 01/02/2020   18:30:48   (  -0.06,-128.31) (  -0.76,-124.98)  378.22                80
 01/03/2020   06:54:51   (   0.04,-128.36) (  -0.34,-130.17)  206.37                80
 01/05/2020   06:39:59   (   0.05,-128.40) (   0.29,-127.22)  133.81                80
 01/05/2020   19:03:54   (  -0.04,-128.36) (   0.84,-132.37)  455.75                80
 01/07/2020   06:27:47   (   0.05,-128.42) (   0.92,-124.26)  473.30                80
 01/07/2020   18:51:42   (  -0.04,-128.39) (   0.21,-129.41)  116.53                80