Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 12 30.  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)
 12/31/2019   18:42:59   (  -0.06,-128.26) (  -0.10,-127.93)   36.48                80
 01/02/2020   18:30:48   (  -0.05,-128.30) (  -0.78,-124.99)  376.68                80
 01/03/2020   06:54:52   (   0.04,-128.34) (  -0.32,-130.18)  208.13                80
 01/05/2020   06:40:00   (   0.05,-128.37) (   0.31,-127.22)  131.56                80
 01/05/2020   19:03:54   (  -0.03,-128.34) (   0.81,-132.37)  458.06                80
 01/07/2020   06:27:48   (   0.05,-128.40) (   0.94,-124.26)  470.54                80
 01/07/2020   18:51:42   (  -0.04,-128.36) (   0.18,-129.41)  119.30                80
 01/09/2020   18:36:51   (  -0.04,-128.38) (  -0.46,-126.46)  218.68                80
 01/10/2020   07:00:54   (   0.03,-128.42) (  -0.64,-131.65)  366.73                80
 01/12/2020   06:48:42   (   0.03,-128.43) (   0.00,-128.69)   29.62                80