Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 3 15.  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)
 03/16/2021   18:39:07   (   0.16,-128.45) (  -0.25,-126.42)  230.62                80
 03/17/2021   07:00:31   (  -0.16,-128.37) (  -0.85,-131.61)  368.48                80
 03/19/2021   06:48:18   (  -0.15,-128.37) (  -0.24,-128.65)   32.08                80
 03/21/2021   06:33:26   (  -0.15,-128.37) (   0.44,-125.70)  303.81                80
 03/21/2021   18:54:41   (   0.15,-128.45) (   0.66,-130.86)  274.06                80
 03/23/2021   18:45:08   (   0.14,-128.43) (   0.04,-127.89)   61.05                80
 03/25/2021   18:32:55   (   0.14,-128.42) (  -0.58,-124.93)  395.76                80
 03/26/2021   06:54:19   (  -0.14,-128.34) (  -0.52,-130.13)  203.44                80
 03/28/2021   06:39:26   (  -0.14,-128.32) (   0.11,-127.17)  130.86                80
 03/28/2021   19:00:40   (   0.14,-128.38) (   0.99,-132.32)  448.15                80