Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 8 6.  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)
 08/07/2021   18:36:45   (  -0.02,-128.00) (  -0.33,-126.45)  175.14                80
 08/08/2021   07:00:49   (  -0.00,-128.09) (  -0.75,-131.65)  404.94                80
 08/10/2021   06:48:39   (   0.01,-128.12) (  -0.09,-128.70)   65.25                80
 08/12/2021   06:33:48   (   0.02,-128.16) (   0.52,-125.74)  274.20                80
 08/12/2021   18:57:43   (   0.01,-128.08) (   0.62,-130.89)  319.52                80
 08/14/2021   18:42:53   (   0.00,-128.11) (  -0.05,-127.94)   19.45                80
 08/16/2021   18:30:42   (   0.00,-128.13) (  -0.66,-124.98)  357.56                80
 08/17/2021   06:54:46   (  -0.03,-128.22) (  -0.47,-130.17)  222.32                80
 08/19/2021   06:39:56   (  -0.02,-128.23) (   0.21,-127.22)  114.83                80
 08/19/2021   19:03:51   (   0.06,-128.14) (   0.94,-132.37)  480.20                80