Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 12 23.  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)
 12/24/2019   18:36:56   (  -0.09,-128.11) (  -0.46,-126.47)  187.39                80
 12/25/2019   07:01:00   (   0.07,-128.16) (  -0.66,-131.66)  397.09                80
 12/27/2019   06:48:48   (   0.07,-128.21) (  -0.04,-128.70)   55.43                80
 12/29/2019   06:33:56   (   0.07,-128.26) (   0.59,-125.74)  286.04                80
 12/29/2019   18:57:51   (  -0.06,-128.23) (   0.53,-130.89)  302.89                80
 12/31/2019   18:43:00   (  -0.06,-128.28) (  -0.16,-127.95)   38.52                80
 01/02/2020   18:30:48   (  -0.06,-128.32) (  -0.78,-124.99)  379.47                80
 01/03/2020   06:54:52   (   0.05,-128.37) (  -0.32,-130.18)  205.14                80
 01/05/2020   06:40:00   (   0.05,-128.41) (   0.32,-127.22)  135.30                80
 01/05/2020   19:03:54   (  -0.04,-128.38) (   0.81,-132.37)  454.14                80